[Federal Register Volume 89, Number 220 (Thursday, November 14, 2024)]
[Notices]
[Pages 90056-90058]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2024-26436]
[[Page 90056]]
-----------------------------------------------------------------------
DEPARTMENT OF LABOR
Mine Safety and Health Administration
Petition for Modification of Application of Existing Mandatory
Safety Standards
AGENCY: Mine Safety and Health Administration, Labor.
ACTION: Notice.
-----------------------------------------------------------------------
SUMMARY: This notice is a summary of a petition for modification
submitted to the Mine Safety and Health Administration (MSHA) by
Buchanan Minerals, LLC.
DATES: All comments on the petition must be received by MSHA's Office
of Standards, Regulations, and Variances on or before December 16,
2024.
ADDRESSES: You may submit comments identified by Docket No. MSHA-2024-
0058 by any of the following methods:
1. Federal eRulemaking Portal: https://www.regulations.gov. Follow
the instructions for submitting comments for MSHA-2024-0058.
2. Fax: 202-693-9441.
3. Email: [email protected].
4. Regular Mail or Hand Delivery: MSHA, Office of Standards,
Regulations, and Variances, 201 12th Street South, Suite 4E401,
Arlington, Virginia 22202-5452.
Attention: S. Aromie Noe, Director, Office of Standards,
Regulations, and Variances. Persons delivering documents are required
to check in at the receptionist's desk, 4th Floor West. Individuals may
inspect copies of the petition and comments during normal business
hours at the address listed above. Before visiting MSHA in person, call
202-693-9455 to make an appointment.
FOR FURTHER INFORMATION CONTACT: S. Aromie Noe, Office of Standards,
Regulations, and Variances at 202-693-9440 (voice),
[email protected] (email), or 202-693-9441 (fax). [These
are not toll-free numbers.]
SUPPLEMENTARY INFORMATION: Section 101(c) of the Federal Mine Safety
and Health Act of 1977 and title 30 of the Code of Federal Regulations
(CFR), part 44, govern the application, processing, and disposition of
petitions for modification.
I. Background
Section 101(c) of the Federal Mine Safety and Health Act of 1977
(Mine Act) allows the mine operator or representative of miners to file
a petition to modify the application of any mandatory safety standard
to a coal or other mine if the Secretary of Labor determines that:
1. An alternative method of achieving the result of such standard
exists which will at all times guarantee no less than the same measure
of protection afforded the miners of such mine by such standard; or
2. The application of such standard to such mine will result in a
diminution of safety to the miners in such mine.
In addition, Sec. Sec. 44.10 and 44.11 of 30 CFR establish the
requirements for filing petitions for modification.
II. Petition for Modification
Docket Number: M-2024-035-C.
Petitioner: Buchanan Minerals, LLC, P.O. Drawer L, Oakwood VA
24631.
Mine: Buchanan No.1 Mine, MSHA ID No. 44-04856, located in Buchanan
County, Virginia.
Regulation Affected: 30 CFR 75.507-1(a), Permissible electric
equipment.
Modification Request: The petitioner requests a modification of 30
CFR 75.507-1(a) to allow the use of an alternative method of respirable
dust protection. Specifically, the petitioner is requesting to use a
battery powered respirable protection unit called the 3M Versaflo TR-
800 powered air-purifying respirator (PAPR) in addition to the
CleanSpace EX PAPR in the return air outby the last open crosscut.
The petitioner states that:
(a) The petitioner is requesting to utilize the 3M Versaflo TR-800
PAPR in addition to the utilization of the CleanSpace EX PAPR, which
was approved through a previous Proposed Decision and Order (PDO)
granted by MSHA (MSHA Docket Number M-2021-023-C).
(b) The 3M Airstream helmet has been used in mines for over 40
years. 3M has recently faced component disruptions for the Airstream
product. This has caused 3M to discontinue, globally, the Airstream on
June 1, 2020. The ability to order an Airstream system and components
ended in February 2020, and components were available through June
2020. Currently, there are not any available replacement PAPRs that
meet the MSHA standard for permissibility. PAPRs provide a constant
flow of filtered air, which offers respiratory protection and comfort
in hot working environments. Operators that were using the Airstream,
do not have an alternative to provide to this type of protection to its
miners.
(c) Buchanan Minerals, LLC, is seeking alternatives to the 3M
Airstream helmet to provide miners with respirable protection against
respirable coal mine and silica dust, a protection that can provide
long-term health benefits.
(d) Both the CleanSpace EX and 3M Versaflo TR-800 PAPRs provide a
constant flow of filtered air inside the half-mask, full mask or
helmet. The airflow provides respiratory protection and comfort in hot
working conditions. Both PAPRs shall be equipped with the following:
Particulate protection classified as 100 series under 42 CFR part 84;
or Particulate protection classified as High Efficiency ``HE'' under 42
CFR part 84.
(e) Buchanan Minerals LLC, Buchanan No.1. Mine is seeking to
continue the use of the CleanSpace EX PAPR and applying to utilize the
3M Versaflo TR-800 PAPR in the return air outby the last open crosscut.
(f) CleanSpace EX.
(1) The CleanSpace EX is certified by TestSafe Australia (TSA)
according to the IEC 60079-0:2011 (General Requirements) and IEC 60079-
11:2011 (Intrinsic Safety) standards. The certificate, issued to PAFtec
Australia Pty Ltd (``PAFtec''), allows PAFtec to mark the device as
``Ex ib IIB T4 Gb'' and ``Ex ia I Ma.'' Due to legal and regulatory
constraints, the TSA certificate is not accepted by MSHA as evidence
that the PAPR is approved for use in US mines. The IEC certification
marking that applies to mining, Ex ia I Ma, is discussed below:
(2) The CleanSpace EX is certified to be used in hazardous
locations (``Ex''); meets the most onerous level of intrinsic safety
protection (``ia''); the level of protection is acceptable for use in
mining locations (``I''), and the Equipment Protection Level
appropriate for mining equipment, that has a ``very high'' level of
protection, with sufficient security that it is unlikely to become an
ignition source in normal operation, during expected malfunctions or
during rare malfunctions, even when left energized in the presence of
an outbreak of gas (``Ma'').
(3) NIOSH researchers, in a paper titled ``An Evaluation of the
Relative Safety of U.S. Mining Explosion-Protected Equipment Approval
Requirements versus those of International Standards'', have determined
that equipment, which meets two-fault intrinsic safety as defined in
the ANSI/UL 60079 standard, would provide at least an equivalent level
of safety as that provided by equipment approved under MSHA criteria.
(4) The UL certification, TSA certification, and PAFtec listing
material (drawings, certificate and text report) were found to support
the conclusion that the CleanSpace EX meet the applicable ``two fault''
intrinsic safety
[[Page 90057]]
requirements for mining equipment, as found in the ANSI/UL standard.
(5) The CleanSpace EX carries an ingress protection rating of IP66.
This rating exceeds the minimum rating of IP54 required by the ANSI/UL
and IEC standards for intrinsically safe mining equipment.
(6) This product is not MSHA approved, and the manufacturer is not
pursuing approval. The standards for the approval of this respirator
are an accepted alternative to MSHA's standards and provide the same
level of protection.
(g) 3M Versaflo TR-800.
(1) The 3M Versaflo TR-800 PAPR with motor/blower and battery
qualifies as intrinsically safe, based on reports by the International
Electrotechnical Commission Systems for Certification to Standards
Relating to Equipment for Use in Explosive Atmospheres (IECEx). The
blower is UL-certified with an intrinsically safe rating of Division 1:
Class I, II, III; Division 1: Groups C, D, E, F, G; T4 under the
current standard of UL 60079; ATEX-certified with a rating of ``ia''.
The 3M Versaflo TR-800 is rated and marked Ex ia I MA, Ex ia IIB T4 Ga,
Ex ia IIIC 135oC Da; 120 [deg]C <= TA <= +55 [deg]C.
(2) The 3M Versaflo TR-800 carries an ingress protection rating of
IP64. This rating exceeds the minimum rating of IP54 required by the
ANSI/UL and IEC standards for intrinsically safe mining equipment.
(3) This product is not MSHA approved, and the manufacturer is not
pursuing approval. The standards for the approval of this respirator
are an accepted alternative to MSHA's standards and provide the same
level of protection.
(h) The alternative method will guarantee no less than the same
measure of protection afforded the miners under the mandatory standard.
The petitioner proposes the following alternative method:
(a) Affected mine employees shall be trained in the proper use and
maintenance of the PAPR(s) to be used at the mine, the 3M Versaflo TR-
800 and/or the CleanSpace EX, in accordance with established
manufacturer guidelines. This training shall alert the affected
employee that neither the 3M Versaflo TR-800 nor the CleanSpace EX PAPR
is approved under 30 CFR part 18 and therefore shall be de-energized
when 1.0 or more percent methane is detected. The training shall also
include the proper method to de-energize these PAPRs. In addition to
manufacturer guidelines, MSHA shall require that mine employees be
trained to inspect the units before use to determine if there is any
damage to the units that would negatively impact intrinsic safety as
well as all stipulations in the PDO granted by MSHA.
(b) The PAPRs, battery packs, and all associated wiring and
connections shall be inspected before use to determine if there is any
damage to the units that would negatively impact intrinsic safety. If
any defects are found, the PAPR shall be removed from service.
(c) The operator shall maintain a separate logbook for the 3M
Versaflo TR-800 and CleanSpace EX PAPRs that shall be kept with the
equipment, or in a location with other mine record books, and shall be
made available to MSHA upon request. The equipment shall be examined at
least weekly by a qualified person as defined in 30 CFR 75.512-1 and
the examination results shall be recorded in the logbook. Since float
coal dust is removed by the air filter prior to reaching the motor, the
PAPR user shall conduct regular examinations of the filter and perform
periodic testing for proper operation of the ``high filter load alarm''
on the 3M Versaflo TR-800 PAPR, and the ``blocked filter'' alarm on the
CleanSpace EX PAPR. Examination entries may be expunged after one year.
(d) All 3M Versaflo TR-800 and CleanSpace EX PAPRs to be used in
the return air outby the last open crosscut shall be physically
examined prior to initial use and each unit shall be assigned a unique
identification number. Each unit shall be examined by the person to
operate the equipment prior to taking the equipment underground to
ensure the equipment is used according to the original equipment
manufacturer's recommendations and maintained in a safe operating
condition. The examinations for the 3M Versaflo TR-800 PAPRs shall
include:
(1) Check the equipment for any physical damage and the integrity
of the case,
(2) Remove the battery and inspect for corrosion,
(3) Inspect the contact points to ensure a secure connection to the
battery,
(4) Reinsert the battery and power up and shut down to ensure
proper connections,
(5) Check the battery compartment cover or battery attachment to
ensure that it is securely fastened, and
(6) For equipment utilizing lithium type cells, ensure that lithium
cells and/or packs are not damaged or swelled in size.
(e) All CleanSpace EX PAPRs to be used in the return air outby the
last open crosscut shall be physically examined prior to initial use
and each unit shall be assigned a unique identification number. Each
unit shall be examined by the person to operate the equipment prior to
taking the equipment underground to ensure the equipment is used
according to the original equipment manufacturer's recommendations and
maintained in a safe operating condition. The CleanSpace EX PAPR does
not have an accessible/removable battery. The internal battery and
motor/blower assembly are both contained within the ``power unit''
assembly and the battery cannot be removed, reinserted or fastened.
Therefore, examination of the CleanSpace EX PAPR should include any
indications of physical damage.
(f) The operator shall ensure that all 3M Versaflo TR-800 and
CleanSpace EX PAPR units are serviced according to the manufacturer's
recommendations. Dates of service shall be recorded in the equipment's
logbook and shall include a description of the work performed.
(g) The 3M Versaflo TR-800 and CleanSpace EX PAPR units that will
be used in the return air outby the last open crosscut shall not be put
into service until MSHA has initially inspected the equipment and
determined that it is in compliance with all the terms and conditions
of the PDO granted by MSHA.
(h) Prior to energizing the 3M Versaflo TR-800 or the CleanSpace EX
PAPR in the return air outby the last open crosscut, methane tests
shall be made in accordance with 30 CFR 75.323(a).
(i) All hand-held methane detectors shall be MSHA-approved and
maintained in permissible and proper operating condition as defined by
30 CFR 75.320. All methane detectors shall provide visual and audible
warnings when methane is detected in concentrations at or above 1.0
percent.
(j) A qualified person as defined in 30 CFR 75.151 shall
continuously monitor for methane immediately before and during the use
of the 3M Versaflo TR-800 or CleanSpace EX PAPR in the return air outby
the last open crosscut.
(k) Neither the 3M Versaflo TR-800 nor the CleanSpace EX PAPR shall
be used if methane is detected in concentrations at or above 1.0
percent. When 1.0 percent or more methane is detected while the 3M
Versaflo TR-800 or CleanSpace EX PAPR is being used, the equipment
shall be de-energized immediately and the equipment withdrawn outby the
last open crosscut.
(l) The operation and location of the 3M Versaflo TR-800 and
CleanSpace EX PAPRs during underground blasting operations shall be
defined in accordance with 30 CFR 75.1312(e)(1)
[[Page 90058]]
and 75.1313(b)(1) and individualized underground blasting permits
approved by the District Manager.
(m) Only the 3M TR-830 Battery Pack shall be used, which meets
lithium battery safety standard UL 1642 or IEC 62133, in the 3M
Versaflo TR-800 PAPR. Use only the CleanSpace EX Power Unit, which
meets lithium battery safety standard UL 1642 or IEC 62133, in the
CleanSpace EX PAPR.
(n) Before each shift when the 3M Versaflo TR-800 or CleanSpace EX
PAPR is to be used, all batteries and power units for the equipment
shall be charged sufficiently for the expected usage on that shift. If
spare battery packs for the 3M Versaflo TR-800 PAPR are provided, all
battery ``change outs'' shall occur in intake air outby the last open
crosscut.
(o) The following maintenance and use conditions shall apply to
equipment containing lithium-type batteries:
(1) Neither the 3M TR-830 Battery Pack nor the CleanSpace EX Power
Unit may be disassembled nor modified by anyone other than permitted by
the manufacturer of the equipment.
(2) The 3M TR-830 Battery Pack shall be charged only in an area
free of combustible material, readily monitored and located on the
surface of the mine. The 3M TR-830 Battery Pack shall be charged only
by a manufacturer's recommended battery charger, such as:
(i) 3M Battery Charger Kit TR-641N, which includes one 3M Charger
Cradle TR-640 and one 3M Power Supply TR-941N, or
(ii) 3M 4-Station Battery Charger Kit TR-644N, which includes four
3M Charger Cradles TR-640 and one 3M 4-Station Battery Charger Base/
Power Supply TR-944N.
(3) The CleanSpace EX internal battery, which is contained within
the power unit assembly, shall be charged in areas located outby the
last open crosscut in intake air as per 30 CFR 75.340, or in an area
free of combustible material, readily monitored and located on the
surface of the mine, and only the manufacturer's recommended battery
chargers may be used, such as the CleanSpace EX Battery Charger,
Product Code PAF-0066.
(4) Neither the 3M TR-830 Battery Pack nor the CleanSpace EX power
unit which contains the internal battery, shall be exposed to water,
allowed to get wet or immersed in liquid. This does not preclude
incidental exposure of the 3M TR-830 Battery Pack or the CleanSpace EX
power unit assembly.
(5) Neither the 3M Versaflo TR-800 PAPR nor the CleanSpace EX PAPR,
including the internal battery, shall be used, charged or stored in
locations where the manufacturer's recommended temperature limits are
exceeded. Neither the 3M Versaflo TR-800 PAPR nor the CleanSpace EX
PAPR shall be placed in direct sunlight nor stored near a source of
heat.
(6) Neither the 3M TR-830 Battery Pack nor the CleanSpace EX PAPR's
internal battery shall be used at the end of its life cycle (i.e., when
there is a performance decrease of greater than 20 percent in battery-
operated equipment). The 3M TR-830 Battery Pack and the CleanSpace EX
power unit containing the internal battery shall be disposed of
properly.
(p) Personnel engaged in the use of the 3M Versaflo TR-800 and
CleanSpace EX PAPRs shall be properly trained to recognize the hazards
and limitations associated with the use of the equipment in areas where
methane could be present. Additionally, personnel shall be trained
regarding proper procedures for donning self-contained self rescuers
(SCSRs) during a mine emergency while wearing the 3M Versaflo TR-800 or
CleanSpace EX PAPR. The mine operator shall submit proposed revisions
to update the Mine Emergency Evacuation and Firefighting Program of
Instruction under 30 CFR 75.1502.
(q) Within 60 days after the PDO granted by MSHA becomes final, the
operator shall submit proposed revisions for its approved 30 CFR part
48 training plans to the Mine Safety and Health Enforcement District
Manager. These proposed revisions shall specify initial and refresher
training regarding the terms and conditions stated in the PDO granted
by MSHA. When training is conducted on the terms and conditions in the
PDO granted by MSHA, an MSHA Certificate of Training (Form 5000-23)
shall be completed. Comments shall be included on the Certificate of
Training indicating that the training received was for use of the 3M
Versaflo TR-800 or the CleanSpace EX PAPR.
(r) All personnel who will be involved with or affected by the use
of the 3M Versaflo TR-800 or CleanSpace EX PAPRs shall receive training
in accordance with 30 CFR 48.7 on the requirements of the PDO granted
by MSHA within 60 days of the date the PDO granted by MSHA becomes
final. Such training shall be completed before any 3M Versaflo TR-800
or CleanSpace EX PAPR can be used in the return air outby the last open
crosscut. The operator shall keep a record of such training and provide
such record to MSHA upon request.
(s) The operator shall provide annual retraining to all personnel
who will be involved with or affected by the use of the 3M Versaflo TR-
800 or CleanSpace EX PAPRs in accordance with 30 CFR 48.8. The operator
shall train new miners on the requirements of the PDO granted by MSHA
in accordance with 30 CFR 48.5 and shall train experienced miners on
the requirements of the PDO granted by MSHA in accordance with 30 CFR
48.6. The operator shall keep a record of such training and provide
such record to MSHA upon request.
(t) The operator shall post the PDO granted by MSHA in unobstructed
locations on the bulletin boards and/or in other conspicuous places
where notices to miners are ordinarily posted, for a period of not less
than 60 consecutive days.
(u) There are no representatives of miners at Buchanan Minerals
LLC, Buchanan No. 1 Mine. A copy of this petition has been posted on
the bulletin board as of August 28, 2024.
The petitioner asserts that the alternative method will guarantee
no less than the same measure of protection afforded the miners under
the mandatory standard.
Song-ae Aromie Noe,
Director, Office of Standards, Regulations, and Variances.
[FR Doc. 2024-26436 Filed 11-13-24; 8:45 am]
BILLING CODE 4520-43-P