Social Security: Government and Commercial Use of the Social Security
Number Is Widespread (Letter Report, 02/16/99, GAO/HEHS-99-28).

Pursuant to a congressional request, GAO reviewed how the social
security number (SSN) is used, focusing on: (1) federal laws and
regulations requiring or restricting SSN use; (2) how extensively the
private and public sectors use SSNs for purposes not required by federal
law; and (3) what businesses and governments believe the impact would be
if federal laws limiting the use of SSNs were passed.

GAO noted that: (1) no single law regulates the overall use of SSNs; (2)
the Social Security Act, which created the social security programs for
which the SSN was developed, did not require the Social Security
Administration (SSA) to devise SSNs; (3) however, once SSA created and
began using SSNs to help administer its programs, Congress recognized
the universal nature of the SSN and subsequently enacted laws requiring
SSN uses for some purposes not related to social security; (4) federal
laws now require that SSNs be used in the administration of some
programs, including the federal personal income tax program, the
Supplemental Security Income, Medicaid, Food Stamp, and Child Support
Enforcement programs, and state commercial driver licensing programs;
(5) some of these laws impose restrictions on SSN use relating to the
programs or activities involved; (6) no federal law, however, imposes
broad restrictions on businesses' and state and local governments' use
of SSNs when that use is unrelated to a specific federal requirement;
(7) businesses and governments are not limited to using SSNs only for
purposes required by federal law; (8) officials of all the organizations
GAO reviewed--businesses that sell personal information, those that
offer financial and health care services, and state personal income tax
and driver licensing agencies--routinely choose to use SSNs as a
management tool to conduct their business or program activities; (9)
these uses can affect large numbers of people; (10) credit bureau and
state personal income tax officials, for example, said they use the SSN
as a primary record identifier for internal activities, such as
maintaining individual consumer credit histories and identifying income
tax filers; (11) officials of the other organizations GAO contacted said
they use SSNs to match records with those of other organizations to
carry out the data exchanges necessary to conduct their business; (12)
data exchanges are conducted for such purposes as obtaining information
to assess credit risk, locate assets, and ensure compliance with program
rules and regulations; (13) both private business and government
officials said their organizations could be adversely affected if the
federal government passed laws that limited their use of SSNs; (14)
credit bureau officials and state tax administrators said federal
restrictions could impede their ability to conduct routine and internal
activities; and (15) however, given the public's concern about the
disclosure of SSNs, some officials said their organizations have taken
steps to limit disclosure.

--------------------------- Indexing Terms -----------------------------

 REPORTNUM:  HEHS-99-28
     TITLE:  Social Security: Government and Commercial Use of the 
             Social Security Number Is Widespread
      DATE:  02/16/99
   SUBJECT:  Social security number
             Social security taxes
             Right of privacy
             Credit bureaus
             State-administered programs
             Personal income taxes
             Licenses
             Computer matching
IDENTIFIER:  FHwA Commercial Driver's License Information System
             Food Stamp Program
             Medicaid Program
             Supplemental Security Income Program
             HHS Child Support Enforcement Program
             SSI
             
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Cover
================================================================ COVER


Report to the Chairman, Subcommittee on Social Security, Committee on
Ways and Means, House of Representatives

February 1999

SOCIAL SECURITY - GOVERNMENT AND
COMMERCIAL USE OF THE SOCIAL
SECURITY NUMBER IS WIDESPREAD

GAO/HEHS-99-28

Social Security Number Use

(207023)


Abbreviations
=============================================================== ABBREV

  AAMVA - American Association of Motor Vehicle Administrators
  CDLIS - Commercial Driver's License Information System
  HMO - health maintenance organization
  IRS - Internal Revenue Service
  SSA - Social Security Administration
  SSI - Supplemental Security Income
  SSN - Social Security number
  TANF - Temporary Assistance for Needy Families

Letter
=============================================================== LETTER


B-278798

February 16, 1999

The Honorable E.  Clay Shaw
Chairman, Subcommittee on Social
 Security
Committee on Ways and Means
House of Representatives

Dear Mr.  Chairman: 

The Social Security number (SSN) was created in 1936 as a means of
tracking workers' earnings and eligibility for Social Security
benefits.  For a number of reasons, most Americans have an SSN, each
of which is unique to the individual.  Today, the SSN is used for a
myriad of non-Social Security purposes, some legal and some illegal. 
Both private businesses and government agencies frequently ask
individuals for SSNs in order to comply with federal laws requiring
these numbers or because these entities need the SSNs to conduct
their business. 

Responding to public concerns about how organizations use SSNs and
mounting occurrences of identity theft, sometimes involving misuse of
SSNs, several members of the Congress have introduced bills to
regulate the use of SSNs.  To obtain information on how the SSN is
currently used, the Subcommittee asked us to describe

  -- federal laws and regulations requiring or restricting SSN use,

  -- how extensively the private and public sectors use SSNs for
     purposes not required by federal law, and

  -- what businesses and governments believe the impact would be if
     federal laws limiting the use of SSNs were passed. 

To develop this information, we reviewed private businesses that sell
information of a personal nature about members of the general public,
including individuals' SSNs; businesses involved in providing
financial and health care services to individuals; and two large
state programs that frequently use SSNs for administrative purposes. 
Appendix I contains a list of the organizations and agencies we
contacted.  For more details about our scope and methodology, see
appendix II.  We conducted our work between January and December 1998
in accordance with generally accepted government auditing standards. 


   RESULTS IN BRIEF
------------------------------------------------------------ Letter :1

No single federal law regulates the overall use of SSNs.  The Social
Security Act, which created the Social Security programs for which
the SSN was developed, did not require the Social Security
Administration (SSA) to devise SSNs.  However, once SSA created and
began using SSNs to help administer its programs, the Congress
recognized the universal nature of the SSN and subsequently enacted
laws requiring SSN uses for some purposes not related to Social
Security.  Federal laws now require that SSNs be used in the
administration of some programs, including the federal personal
income tax program; the Supplemental Security Income (SSI), Medicaid,
Food Stamp, and Child Support Enforcement programs; and state
commercial driver licensing programs.  Some of these laws impose
restrictions on SSN use relating to the programs or activities
involved.  No federal law, however, imposes broad restrictions on
businesses' and state and local governments' use of SSNs when that
use is unrelated to a specific federal requirement. 

Businesses and governments are not limited to using SSNs only for
purposes required by federal law.  Officials of all the organizations
we reviewed--businesses that sell personal information, those that
offer financial and health care services, and state personal income
tax and driver licensing agencies--routinely choose to use SSNs as a
management tool to conduct their business or program activities. 
These uses can affect large numbers of people.  Credit bureau and
state personal income tax officials, for example, said they use the
SSN as a primary record identifier for internal activities, such as
maintaining individual consumer credit histories and identifying
income tax filers, whereas officials of the other organizations said
they generally assign their own identifiers for internal activities. 
Officials of all the organizations we contacted said they use SSNs to
match records with those of other organizations to carry out the data
exchanges necessary to conduct their business.  Data exchanges are
conducted for such purposes as obtaining information to assess credit
risk, locate assets, and ensure compliance with program rules and
regulations. 

Both private business and government officials said their
organizations could be adversely affected if the federal government
passed laws that limited their use of SSNs.  Credit bureau officials
and state tax administrators said federal restrictions could impede
their ability to conduct routine internal activities, such as
maintaining consumer histories and identifying tax filers, activities
for which members of their industries use the SSN as the primary
record identifier.  Many of the officials we interviewed believed
federally imposed restrictions could adversely affect their
organizations' ability to conduct data exchanges with others.  For
example, health care officials said such restrictions could limit
health care providers' ability to track patient care among multiple
providers.  American Association of Motor Vehicle Administrators
(AAMVA) officials said such restrictions could make it difficult for
states to detect noncommercial drivers who were trying to conceal
driving infractions under other state licenses.  In general, credit
bureau and other officials said that if credit reports could not be
requested using SSNs, organizations would have less assurance of
receiving information on the individuals in question.  However, given
the public's concern about the disclosure of SSNs, some officials
said their organizations have taken steps to limit disclosure. 
Officials of businesses that sell personal information said that as
of December 31, 1998, some members of their industry are voluntarily
restricting the disclosure of SSNs when they sell information, and
Ohio and Georgia driver licensing officials said their states have
discontinued practices that routinely disclose SSNs. 


   BACKGROUND
------------------------------------------------------------ Letter :2

In 1935, title II of the Social Security Act created the Social
Security retirement program to pay benefits to retired workers. 
Subsequent federal laws added benefits for workers' dependents and
survivors and, later, for disabled workers.  Workers now earn
entitlement to benefits on the basis of the number of Social Security
credits they have earned while working in jobs covered by Social
Security.  Because the act required SSA to maintain records of wage
amounts employers report having paid to individuals, in 1936, SSA
created SSNs as a means of maintaining individual earnings records
and issued cards to workers as records of their SSNs.  The act now
requires individuals to provide SSA their number when they apply for
Social Security benefits.  SSA uses the SSN to identify applicants'
personal earnings records, which contain information the agency uses
to compute benefits payable to beneficiaries. 

Over the years, the SSN has come to be viewed by many as a national
identifier because almost every American has an SSN, and each is
unique.\1 SSA estimates that about 277 million individuals currently
have SSNs.  Furthermore, the boom in computer technology over the
past several decades has prompted private businesses and government
agencies to rely on SSNs as a way to accumulate and identify
information in their databases.  Simply stated, the uniqueness and
broad applicability of the SSN have made it the identifier of choice
for government agencies and private businesses, both for compliance
with federal requirements and for the agencies' and businesses' own
purposes.\2


--------------------
\1 Some individuals do not have an SSN either because they do not
want one or because they are ineligible to receive one.  Prior to
1996, SSA issued an SSN to any lawful alien requesting a number. 
Since then, the only noncitizens to whom SSA has issued SSNs have
been those with one of two valid nonwork reasons for needing a
number.  That is, the federal government requires applicants for
benefits or services under certain federal programs to have an SSN,
and states require applicants for driver's licenses to have SSNs. 

\2 In cases in which individuals do not have SSNs or choose not to
provide them, organizations may use alternative identifiers. 


   FEDERAL LAWS AND REGULATIONS
   REQUIRE AND RESTRICT CERTAIN
   SSN USES
------------------------------------------------------------ Letter :3

No federal law regulates overall use of SSNs.  However, a number of
federal laws and regulations enacted since the 1960s require certain
programs and federally funded activities to use the SSN for
administrative purposes.  These laws and regulations generally limit
the use of the SSN to the required purpose by explicitly prohibiting
other uses or disclosures.  Federal law neither requires nor
prohibits many of the public and private sectors' other uses of SSNs. 


      FEDERAL LAWS AND REGULATIONS
      REQUIRE SSN USE IN SOME
      PUBLIC PROGRAMS
---------------------------------------------------------- Letter :3.1

A number of federal laws and regulations require the use of the SSN
as an individual's identifier to facilitate automated exchanges that
help administrators enforce compliance with federal laws, determine
eligibility for benefits, or both.  The Internal Revenue Code and
regulations, which govern the administration of the federal personal
income tax program, require that individuals' SSNs serve as taxpayer
identification numbers.\3 This means that employers and others making
payments to individuals must include the individuals' SSNs in
reporting to IRS many of these payments.  Reportable payments include
interest payments to customers, wages paid to employees, dividends
provided to stockholders, and retirement benefits paid to
individuals.  Other reportable transactions include purchases
involving more than $10,000 in cash, such as the purchase of an
automobile or a boat, or mortgage interest payments totaling more
than $600.  In addition, the Code and regulations require individuals
filing personal income tax returns to include their SSNs as their
taxpayer identification number, the SSNs of people whom they claim as
dependents, and the SSNs of spouses to whom they paid alimony.  Using
the SSNs, IRS matches the information supplied by entities reporting
payments or other transactions with returns filed by taxpayers to
monitor individuals' compliance with federal income tax laws. 

A number of federal laws require program administrators to use SSNs
in determining applicants' eligibility for federally funded benefits. 
The Social Security Act requires individuals to provide their SSNs in
order to receive benefits under the SSI, Food Stamp, Temporary
Assistance for Needy Families (TANF), and Medicaid programs.\4 These
programs provide benefits to people with limited income and resources
as well as medical care for the needy.  Applicants give program
administrators information on their income and resources, and program
administrators use applicants' SSNs to match records with those of
other organizations to verify the information.  For example, SSA uses
SSNs to determine whether applicants for SSI benefits have accurately
reported their income by matching records with the Department of
Veterans Affairs, the Office of Personnel Management, and the
Railroad Retirement Board to identify any retirement or disability
payments to these applicants.  In addition to using SSNs to match
records with other federal benefit-paying agencies, administrators of
these programs said they also match records with state unemployment
agencies, IRS, and employers to verify earned and unearned income,
such as unemployment benefits, wages, retirement benefits, and
interest paid to applicants.  In fact, we have recommended in
numerous reports that administrators of programs paying federally
funded benefits match data in their payment files with SSA records to
identify deceased beneficiaries, and that SSA match its records with
other state and federal program records to reduce SSI payments to
individuals whom the agency finds residing in nursing homes and
prisons as well as those receiving benefits under other programs.\5

Using SSNs to identify such recipients enhances program payment
controls and reduces fraud and abuse. 

Another federal law that requires the use of SSNs to identify
individuals is the Commercial Motor Vehicle Safety Act of 1986.  This
law established the Commercial Driver's License Information System
(CDLIS), a nationwide database.  States are required to use
individuals' SSNs to search this database for other state-issued
licenses commercial drivers may hold.  This checking is necessary
because commercial drivers are limited to owning one state-issued
driver's license.  If a state grants a license, the state is required
to record the license information, including the driver's SSN, in the
CDLIS.  States may also use SSNs to search another database, the
National Driver's Registry, to determine whether an applicant's
license has been cancelled, suspended, or revoked by another state. 
In these situations, the states use SSNs to limit the possibility of
inappropriately licensing applicants. 

Federal law also requires the use of SSNs in state child support
programs to help states locate noncustodial parents, establish and
enforce support orders, and recoup state welfare payments from
parents.\6 The Personal Responsibility and Work Opportunity Act of
1996 expanded the Federal Parent Locator Service--an automated
database searchable by SSN--to include information helpful for
tracking delinquent parents across state lines.  The law requires
states to maintain records that include (1) SSNs for individuals who
owe or are owed support for cases in which the state has ordered
child support payments to be made, the state is providing support, or
both, and (2) employers' reports of new hires identified by SSN. 
States must transmit this information to the Federal Parent Locator
Service.  The law also requires states to record SSNs on many other
state documents, such as professional, occupational, and marriage
licenses; divorce decrees; paternity determinations; and death
certificates, and to make SSNs associated with these documents
available for state child support agencies to use in locating and
obtaining child support payments from noncustodial parents. 


--------------------
\3 The Internal Revenue Service (IRS) assigns permanent taxpayer
identification numbers to individuals who need identifiers for tax
purposes but are not eligible to obtain SSNs. 

\4 As of July 1, 1997, the Personal Responsibility and Work
Opportunity Act replaced Aid to Families With Dependent Children with
TANF. 

\5 See Social Security:  Better Payment Controls for Benefit
Reduction Provisions Could Save Millions (GAO/HEHS-98-76, Apr.  30,
1998), Supplemental Security Income:  Opportunities Exist for
Improving Payment Accuracy (GAO/HEHS-98-75, Mar.  27, 1998),
Supplemental Security Income:  Timely Data Could Prevent Millions in
Overpayments to Nursing Home Residents (GAO/HEHS-97-62, June 3,
1997), Supplemental Security Income:  SSA Efforts Fall Short in
Correcting Erroneous Payments to Prisoners (GAO/HEHS-96-152, Aug. 
30, 1996), Supplemental Security Income:  Administrative and Program
Savings Possible by Directly Accessing State Data (GAO/HEHS-96-163,
Aug.  29, 1996), and Social Security:  Most Social Security Death
Information Accurate but Improvements Possible (GAO/HEHS-92-11, Aug. 
29, 1994). 

\6 States' receipt of federal funding for TANF is contingent upon
their compliance with federal child support enforcement initiatives. 


      SOME FEDERAL LAWS RESTRICT
      SSN USE
---------------------------------------------------------- Letter :3.2

Federal laws that require the use of an SSN generally limit its use
to the statutory purposes described in each of the laws.  For
example, the Internal Revenue Code, which requires the use of SSNs
for certain purposes, declares tax return information, including
SSNs, to be confidential and prescribes both civil and criminal
penalties for unauthorized disclosure.  Similarly, the Social
Security Act, which requires the use of SSNs for a number of
different purposes, declares that SSNs obtained or maintained by
authorized individuals on or after October 1, 1990, are confidential
and prohibits their disclosure.  The Personal Responsibility and Work
Opportunity Act of 1996 explicitly restricts the use of SSNs to
purposes set out in the act, such as locating absentee parents to
enforce child support payments. 

In addition to the restrictions contained in laws that require the
use of SSNs, the Privacy Act of 1974 also restricts federal agencies
in collecting and disclosing personal information, which includes
SSNs.  The act requires federal agencies that collect information
from individuals to inform the individuals of the agencies' authority
for requesting the information, whether providing the information is
optional or mandatory, and how the agencies plan to use the
information.  The act, which also prohibits federal agencies from
disclosing information without the individuals' consent, does not
apply to other levels of government and private businesses. 

Except as discussed above, federal law does not regulate the use of
SSNs.  Thus, legitimate businesses and nonfederal agencies have
devised uses of SSNs not covered by federal law, as discussed in the
following section. 


   BUSINESSES AND GOVERNMENTS USE
   SSNS EXTENSIVELY
------------------------------------------------------------ Letter :4

The advent of computerized record keeping has led private businesses
and government agencies to routinely use SSNs for activities other
than those required by federal laws and regulations.  Businesses and
government agencies may ask for SSNs when individuals apply for
benefits or services, such as worker's compensation, driver's
licenses, credit, checking accounts, insurance, apartment rentals,
and public utilities.  Law enforcement agencies may also use SSNs for
investigative purposes. 

Because there are so many users of the SSN, we focused on describing
SSN use by organizations that routinely use these numbers for
activities that affect a large number of people:  organizations that
sell personal information, provide financial services, and offer
health care services and state government agencies that are
responsible for collecting personal income tax and licensing drivers. 
In general, organizations may record SSNs in their databases for two
purposes:  to locate records for routine internal activities, such as
maintaining and updating account information, and, more frequently,
to facilitate information exchanges with other organizations. 


      BUSINESSES THAT SELL
      PERSONAL INFORMATION
---------------------------------------------------------- Letter :4.1

Continuing advances in computer technology and the ready availability
of computerized data have spurred the growth of a new business
activity:  amassing vast amounts of personal information, including
SSNs, about members of the public for resale.  Businesses involved in
this activity act as information brokers.\7 One information broker
official told us his organization has more than 12,000 discrete
databases.  The increasing proliferation of information brokers has
aroused concerns about individuals' personal identifying information,
including SSNs, being made easily available to others.  Federal law
does not prohibit such disclosure of SSNs. 

Brokers buy information from public and private sources in various
markets throughout the nation.  The information may include public
records of bankruptcy, tax liens, civil judgments, criminal
histories, deaths, real estate ownership, driving histories, voter
registration, and professional licenses.  This information may also
include privately owned information such as telephone directories and
copyrighted publications, which are often made public, and certain
information from consumer credit reports.  Generally, each record
provides details about the specific event for which it was created as
well as some personal identifying data--for example, an individual's
name; date of birth; current and prior addresses; telephone number;
and, sometimes, SSN.  An information broker official told us that not
every record his organization buys includes an SSN and that public
records are more likely to contain SSNs than those from nonpublic
sources. 

Brokers may provide their services (that is, information products) to
a variety of customers either over private networks or over the
Internet.  Brokers that provide information over private networks
generally limit their services to businesses that establish accounts
with them.  Brokers providing services over the Internet generally
offer their services to the public at large.  Law firms, businesses,
law enforcement agencies, research organizations, and individuals are
among those who use brokers' services.  For example, lawyers, debt
collectors, and private investigators may request information on an
individual's bank accounts and real estate holdings for use in civil
or divorce proceedings; automobile insurers may want information on
whether insurance applicants have been involved in accidents or have
been issued traffic citations; employers may want background checks
on new hires; pension plan administrators may want information to
locate pension beneficiaries; and individuals may ask for information
to help locate birth parents.  When requesting information, customers
may ask for nationwide database searches or searches of only specific
geographical areas. 

Information brokers' databases can be searched by identifiers that
may include SSNs; brokers may also include SSNs along with
information they provide customers.  When possible, information
brokers retrieve data by SSN because it is more likely to produce
records unique to the individual than other identifiers are. 


--------------------
\7 Information brokers are also referred to as "individual reference
services" or "look-up services."


      FINANCIAL SERVICES
      BUSINESSES
---------------------------------------------------------- Letter :4.2

Three national credit bureaus serve as clearinghouses, receiving
charge and payment transaction information from businesses that grant
consumer credit and providing businesses consumer credit reports. 
Officials representing a bank and a credit card company--businesses
that provide credit--told us that because it serves their interests
for credit bureaus to have the most to up-to-date consumer payment
histories, businesses in their industries voluntarily report
customers' charge and payment transactions, accompanied by SSNs, to
credit bureaus.  SSNs are one of the principal identifiers credit
bureaus use to update individuals' credit records with the monthly
reports of credit and payment activity creditors send them.  In
addition, credit bureaus use SSNs provided by customers to retrieve
credit reports on individuals.  Credit bureau officials told us that
customers are not required to provide SSNs when requesting reports,
but requests without SSNs need to include enough information to
sufficiently identify the individual.  An official for a credit
bureau trade association estimated that each national credit bureau
has more than 180 million credit records.\8 A publication by this
official's trade association estimated that, combined, all three
bureaus sell 600 million credit reports annually. 

Businesses such as insurance companies, collection agencies, and
credit granters use SSNs to request information about customers from
credit bureaus.  To determine a customer's likelihood of repaying a
loan, businesses--banks and credit card companies in particular--want
information on customers' histories of repaying debts and whether
customers have filed for bankruptcy or have monetary judgments
against them, such as tax liens.  Officials representing credit
granters said most banks and credit card companies ask applicants to
provide their SSNs, and these credit granters may choose to deny
services to individuals who refuse.  These officials said their
organizations generally do not use SSNs as internal identifiers but
instead assign an account number as a customer's primary identifier. 


--------------------
\8 Many individuals may be included in more than one national credit
bureau's database. 


      HEALTH CARE SERVICES
      ORGANIZATIONS
---------------------------------------------------------- Letter :4.3

Health care services are generally delivered through a coordinated
system that includes health care providers and insurers.  Officials
representing hospitals, a health maintenance organization (HMO), and
a health insurance trade association told us that their organizations
always ask for an SSN, but they do not deny services if a patient
refuses to provide the number. 

A hospital and an HMO official said that their organizations assign
patients other identifying numbers, which they use internally as
primary identifiers for patient medical records, and that they use
SSNs as a backup to identify records when a patient either forgets or
does not know the patient number he or she was assigned.  The HMO
official said SSNs are also used to integrate patients' records when
providers merge, a trend that is growing.  In data exchanges,
hospital and HMO officials said they use SSNs to track patients'
medical care across multiple providers, which helps establish the
patients' medical history and avoid duplicate tests. 

A trade association official told us that some health insurers use
the SSN or a variation of the number as a primary identifier, which
becomes the customer's insurance number.  We were told that the
BlueCross BlueShield health insurance plans and the Medicare program
frequently use this method.  In addition, the trade association
official said insurers and providers frequently match records among
themselves, using SSNs to determine whether individuals have other
insurance to coordinate payment of insurance benefits. 

Officials in the health care industry expect their use of SSNs to
increase.  For example, the hospital official said that to ensure it
has a valid address to bill patients, her hospital plans to use SSNs
during the admission process to obtain on-line verification of
patients' addresses from credit bureaus. 


      STATE AGENCIES
---------------------------------------------------------- Letter :4.4

The states use SSNs to support state government operations and offer
services to residents.  The Social Security Act authorizes states to
use SSNs to administer any tax, general public assistance, driver's
license, or motor vehicle registration law in order to identify
individuals affected by such laws.  Officials of the Maryland and
Virginia personal income tax and Ohio and Georgia driver licensing
programs told us that they use SSNs in both administering these
programs and enforcing compliance with regulations governing the
programs. 

State income tax administrators routinely use the SSN as a primary
identifier in their programs.  An official from an organization
representing state tax administrators said that all states levying
personal income taxes use SSNs to administer their programs.  Tax
officials said that states use SSNs to make state tax systems
compatible with the federal system and to reduce taxpayer reporting
burden.  Maryland and Virginia tax administrators told us their state
tax returns require individuals to provide their SSNs, and
individuals who omit SSNs risk being considered nonfilers if tax
administrators cannot otherwise identify the submitter of the return. 

Tax administrators also use SSNs internally for auditing purposes. 
For example, tax administration officials said they use SSNs to
cross-reference owners' or officers' business income tax returns with
their personal income tax returns so that an audit of one triggers an
audit of the other.  Also, in the course of monitoring compliance
with state income tax laws, states use SSNs to exchange data with
other organizations.  For example, in order to monitor taxpayer
income reporting, states rely on SSNs for data matches with IRS and
state tax agencies to identify residents who received income from
out-of-state employers and businesses and to verify credits for
income taxes that filers report paying to other states.  Also, when
tax administrators assess liens against taxpayers, states may use
SSNs to request information from information brokers and credit
bureaus to identify taxpayer assets, such as bank accounts and real
estate.  In addition, federal and state agencies, such as IRS and
state child support agencies, use SSNs when asking state tax
administrators to offset state refunds otherwise due to taxpayers. 

State driver licensing agencies are more likely to use SSNs to
exchange data with other organizations than to support internal
activities.  A few states print SSNs on licenses and use the SSNs
either as license numbers or along with the state-assigned license
numbers.  Most state driver licensing agencies that request SSNs,
however, include SSNs in driver records as a secondary identifier and
devise their own license numbers.  Information from the AAMVA and
other sources suggests that many states request, but may not require,
applicants for noncommercial driver's licenses to provide their SSNs. 
AAMVA officials estimate that there are about 175 million
noncommercial drivers nationwide. 

To monitor driver compliance with state laws, state officials said
they use SSNs during the licensing process to search national
databases maintained by AAMVA to identify driver's licenses the
applicant may hold in other states and determine whether the
applicant has had a license suspended or revoked in another state. 
These officials also told us that organizations such as the courts
and law enforcement agencies may choose to request driver records by
SSN when they do not know the driver's license number. 

AAMVA officials expect states' use of SSNs to increase as the result
of a recent federal law.  Effective October 1, 2000, the Illegal
Immigration Reform and Immigrant Responsibility Act of 1996 prohibits
federal agencies from accepting state-issued driver's licenses as
proof of identification, unless licenses satisfy federal requirements
set out in the act.  Specifically, states must either verify a
driver's SSN with SSA and record the number in their database or
display the number, visually or electronically, on the license. 

States' practices for disclosing SSNs contained in driver records
vary.  In states in which driver records are public information,
states may disclose SSNs to individuals and organizations such as
credit card companies, direct marketers, and credit bureaus.\9 For
example, Massachusetts driver licensing officials told us that their
driver records are public and that the state includes individuals'
license numbers (usually the SSN) when providing information to
organizations or people requesting driver records. 


--------------------
\9 Since Sept.  1997, states have been required by the federal Driver
Privacy Protection Act to honor individuals' requests that their
records not be made available for mass distribution. 


   BUSINESS AND STATE OFFICIALS
   BELIEVE FEDERAL LAWS
   RESTRICTING USES OF SSNS WOULD
   HAVE A NEGATIVE IMPACT
------------------------------------------------------------ Letter :5

Officials of the programs and activities we reviewed believed their
entities would be negatively affected if federal laws were enacted
restricting use of SSNs.  Businesses that sell personal information
and state driver licensing officials, however, told us that their
organizations have already voluntarily responded to concerns about
their practices for disclosing SSNs.  State tax administrators and
credit bureau officials said that federal restrictions could hamper
their ability to conduct routine internal activities.  For example,
representatives of these organizations said such restrictions could
impede credit bureaus' ability to accurately post consumer payment
and credit transactions and state tax agencies' ability to identify
tax filers.  Moreover, many of the officials we interviewed believed
that federal restriction of their use of SSNs would hamper their
ability to conduct data exchanges with other organizations.  Without
SSNs, state tax administrators said, it would be difficult to
associate tax return information received from other tax agencies
with tax information reported by residents.  In addition, a health
care provider said federal restrictions on SSN use could impede
providers' ability to track patients' medical histories over time and
among multiple providers.  Also, AAMVA officials said federal
restrictions could hinder states' ability to screen for applicants
who try to conceal traffic violations they have acquired under other
state licenses.  Many of the officials we interviewed said federal
restrictions on their use of SSNs could make it difficult for their
organizations to be assured of receiving credit reports for the
specific individuals they requested.  Officials of bank and credit
card companies said they rely heavily on credit reports to make
decisions about providing customers service on credit. 

Officials of businesses that sell personal information and driver
licensing agencies also believed that federal restrictions on SSN use
could make it difficult for others to obtain specific records from
them.  For example, driver licensing officials said that if
"outsiders," such as government and law enforcement agencies, do not
know the driver's license number and cannot request driver records by
SSNs, these agencies can only use the driver's name and are more
likely, therefore, to receive the records of other people with the
same name. 

Because of privacy concerns raised by disclosure of personal
information, businesses and states have become more sensitive to this
issue and are voluntarily restricting the disclosure of some personal
information, including SSNs.  In December 1997, 14 businesses that
sell personal information--the self-identified industry
leaders--responded to these concerns by, among other things,
voluntarily executing a written agreement stating their intent to
restrict disclosure of SSNs associated with data they obtain from
nonpublic sources.\10

These 14 businesses essentially agreed to make SSNs from such sources
available to only a limited range of customers identified as having
appropriate uses for the information, such as law enforcement.  The
14 organizations also agreed to annual compliance reviews by
independent contractors.  When an organization fails to comply with
the agreement, the Federal Trade Commission can cite the organization
for unfair and deceptive business practices.  Because the agreement
was not scheduled to be fully implemented until December 31, 1998,
its effectiveness could not be determined during our review. 

In addition, some states are discontinuing practices that result in
routine disclosure of SSNs.  For example, since July 1, 1997, Georgia
no longer automatically prints SSNs on licenses but rather assigns
its own numbers for driver licenses and uses SSNs as license numbers
only if requested by the license holder to do so.  Ohio, which before
July 29, 1998, routinely printed SSNs along with state-assigned
numbers on driver's licenses, now allows drivers the option of not
having SSNs printed on their licenses.  Also, AAMVA officials believe
most states in which driver records are public now exclude SSNs when
responding to requests for driver records. 


--------------------
\10 An official of the information industry said businesses that
signed the agreement handle about 90 percent of the industry's
business. 


   AGENCY COMMENTS
------------------------------------------------------------ Letter :6

SSA provided technical comments on a draft copy of this report, which
we have incorporated as appropriate. 


---------------------------------------------------------- Letter :6.1

We are providing copies of this report to the Commissioner of Social
Security, officials of organizations and agencies we interviewed
concerning their use of SSNs, and other interested congressional
parties.  Copies will also be made available to others upon request. 
Please contact me on (202) 512-7215 if you have any questions about
this report.  Other major contributors to this report are listed in
appendix III. 

Sincerely yours,

Cynthia M.  Fagnoni
Director, Income Security Issues


ORGANIZATIONS AND AGENCIES WE
CONTACTED CONCERNING THEIR USE OF
SOCIAL SECURITY NUMBERS
=========================================================== Appendix I

American Association of Motor Vehicle Administrators, Arlington, VA
American Bankers Association, Washington, DC
Associated Credit Bureaus, Inc.; Washington, DC
BlueCross BlueShield Association, Washington, DC
Commonwealth of Virginia, Department of Taxation; Richmond, VA
Credit Plus Solution Group, Harrisburg, PA
Experian, Silver Spring, MD
Federation of Tax Administrators, Washington, DC
Georgia Department of Public Safety, Division of Driver Services;
 Atlanta, GA
Independent Bankers Association of America, Washington, DC
Information Industry Association, Washington, DC
Kaiser Permanente, Rockville, MD
Lexis-Nexis, Miamisburg, OH
Maryland Hospital Association, Lutherville, MD
MasterCard, Washington, DC
Mutual Fund Education Alliance, Kansas City, MO
Ohio Bureau of Motor Vehicles, Columbus, OH
State of Maryland, Comptroller of the Treasury, Revenue
Administration
 Division; Annapolis, MD
Wachovia Corporation, Special Services; Atlanta, GA
Washington Hospital Center, Washington, DC


SCOPE AND METHODOLOGY
========================================================== Appendix II

We identified federal requirements and restrictions governing Social
Security numbers (SSN) by using a list prepared by the Social
Security Administration (SSA) that identified federal laws addressing
SSNs.  We developed information on programs' required uses of SSNs by
interviewing officials at the following:  SSA's Retirement,
Survivors, and Disability Insurance and Supplemental Security Income
programs; the Internal Revenue Service's federal personal income tax
program; the Department of Health and Human Services' Medicare,
Medicaid, Temporary Assistance for Needy Families, and Child Support
Enforcement programs; and the Department of Agriculture's Food Stamp
program. 

On the basis of literature searches and interviews with Federal Trade
Commission, SSA, and other cognizant officials, we identified
numerous types of businesses and government activities and programs
that use SSNs extensively.  We then selected two areas of commercial
activity (the financial services and health care services industries)
and two state government activities (personal income tax and driver
licensing programs) for a detailed examination of their SSN use.  In
addition, we included in our review the industry that gathers and
sells personal information.  Although organizations in this industry
do not obtain SSNs directly from the people they provide information
about, these organizations do provide customers personal information
about individuals that may include their SSNs.  Because there are no
readily available data on how extensively businesses and states use
SSNs, we selected entities that are commonly known to use SSNs
routinely and that affect a large number of the general public by
this use.  We developed information on SSN use for these entities
through interviews with officials representing the selected
businesses, trade organizations, and state programs.  We obtained
officials' statements about the prevalence of the use of SSNs among
other similar businesses and state agencies as well as officials'
opinions about the potential impact on their operations if they were
restricted in how they could use SSNs. 

We performed our work at SSA headquarters in Baltimore, Maryland;
Washington, D.C.; and some of their suburbs and at selected other
locations including Annapolis, Maryland; Atlanta, Georgia;
Harrisburg, Pennsylvania; and Richmond, Virginia.  We conducted
telephone interviews with officials in Columbus, Ohio; Boston,
Massachusetts; and Kansas City, Missouri.  We selected both large and
small organizations to determine if size altered the organization's
use of SSNs or its views about the effect of limiting the use of
SSNs. 

Information in this report was obtained primarily through interviews
and is not generalizable to the universe of government and business
communities of the officials we interviewed.  We did not verify the
accuracy of the information provided.  This report does not address
SSN use for illegal activities, such as credit card or program fraud,
which are punishable under criminal statutes, because such an
investigation was beyond the scope of the work we were asked to do. 
(In May 1998, we reported to the Congress on identity fraud, which
can involve misuse of SSNs.)\11


--------------------
\11 Identity Fraud:  Information on Prevalence, Cost, and Internet
Impact Is Limited (GAO/GGD-98-100BR, May 1, 1998). 


GAO CONTACTS AND STAFF
ACKNOWLEDGMENTS
========================================================= Appendix III

GAO CONTACTS

Barbara Bovbjerg, Associate Director, (202) 512-5491
Roland H.  Miller, Assistant Director, (202) 512-7246
Jacquelyn Stewart, Evaluator-in-Charge, (202) 512-7232

STAFF ACKNOWLEDGMENTS

The following people also made important contributions to this
report:  Dennis Gehley and William Staab, Senior Evaluators,
conducted work in the health care and financial communities, and
Roger Thomas, Senior Attorney, provided legal counsel. 


*** End of document. ***