[Federal Register Volume 64, Number 234 (Tuesday, December 7, 1999)]
[Proposed Rules]
[Pages 68310-68311]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 99-31665]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Parts 85 and 86

[AMS-FRL-6503-8]
RIN 2060-AI12, 2060-AI23


Reopening of Comment Period for Control of Emissions of Air 
Pollution from 2004 and Later Model Year Highway Engines and Vehicles; 
Revision of Light-duty Truck Definition

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice of reopening of comment period.

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SUMMARY: EPA is reopening the comment period for the proposed rule for 
the control of emissions of air pollution from 2004 and later model 
year heavy-duty vehicles and engines. The Notice of Proposed Rulemaking 
(NPRM) was published in the Federal Register on October 29, 1999 (64 FR 
58472). The close of the comment period for all issues related to the 
proposed rule was originally December 2, 1999. EPA is extending the 
closure of the comment period to December 16, 1999 for all issues 
except those related to the proposal to revise the light-duty truck 
definition. Comments related to this issue, contained in the proposed 
rule Supplementary Information, Section IV.F, will continue to be 
accepted only through December 2, 1999.

DATES: Comments regarding the proposed rule Supplementary Information, 
Section IV.F, entitled ``Proposal to Revise the Definition of Light-
duty Truck,'' at 64 FR 58502-58507, will be accepted through December 
2, 1999. Comments regarding all other issues related to the proposed 
rule will be accepted until December 16, 1999.

ADDRESSES: Comments on the proposal should be sent to: EPA Air and 
Radiation Docket, Attn: Docket No. A-98-32, Room M-1500 (Mail Code 
6102), 401 M Street SW, Washington, DC 20460. EPA requests that a copy 
of the comments also be sent to the contact person listed below.

FOR FURTHER INFORMATION CONTACT: Margaret Borushko, U.S. Environmental 
Protection Agency, Engine Programs and Compliance Division, 2000 
Traverwood Drive, Ann Arbor, MI, 48105-2498. Telephone (734) 214-4334; 
Fax (734) 214-4816; e-mail [email protected].

SUPPLEMENTARY INFORMATION: On October 29, 1999 EPA published a proposal 
regarding emission standards and compliance procedures for heavy-duty 
vehicles and engines that would take effect in the 2004 model year. The 
comment period on this proposal was scheduled to end on December 2, 
1999.
    EPA held a public hearing on November 2, 1999 to provide 
opportunities for interested parties to comment on issues pertaining to 
the proposed rule. At the hearing, several commenters requested a 
longer comment period. EPA has also received written requests to extend 
the comment period to give affected parties more time to address the 
issues raised in the NPRM.
    Although EPA originally intended to finalize this rulemaking by 
December 31, 1999, and all available resources were committed to 
achieving this, EPA now agrees that extending the comment period may be 
beneficial. This extension does not apply to the comment period for the 
specific provision that proposes to revise the definition of light-duty 
truck (see 64 FR 58502-58507). This provision was initially discussed 
in the Tier 2 NPRM (see 64 FR 26089) and received significant comments 
on this issue at that time. EPA expects to include final provisions in 
the final Tier 2 rule, expected to be completed by December 31, 1999. 
Additional

[[Page 68311]]

comments on this issue will be only accepted until December 2, 1999.

    Dated: November 30, 1999.
Robert Perciasepe,
Assistant Administrator for Air and Radiation.
[FR Doc. 99-31665 Filed 12-6-99; 8:45 am]
BILLING CODE 6560-50-U