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Federal Register / Vol. 86, No. 156 / Tuesday, August 17, 2021 / Notices
power-connection points; outby the last open crosscut; return air; permissibility requirements.
Modification Request: The petitioner requests a modification of the existing standard, 30 CFR 75.5071a, as it relates to the use of an alternative method of respirable dust protection for miners at the Lila Canyon Mine in Utah.
Specifically, the petitioner is applying to use the battery-powered CleanSpace EX and 3M Versaflo TR800 powered air purifying respirators PAPRs in return air outby the last open crosscut.
The petitioner states that:
a The 3M Airstream Mining Headgear-Mounted model PAPR
provides a constant flow of filtered air which results in a reduction of the miners exposure to respirable dust, thus reducing their health risks.
b With discontinuance of the MSHA-approved 3M Airstream Mining Headgear-Mounted model PAPR, there are no other MSHA-approved PAPRs available.
c The use of the CleanSpace EX and 3M Versaflo TR800 PAPRs will provide miners in MMU 0040 with a constant flow of filtered air which results in a reduction of the miners exposure to respirable dust, thus reducing their health risks.
d The use of the CleanSpace EX and 3M Versaflo TR800 PAPRs will protect miners from respirable dust when working in return air outby the last open crosscut performing maintenance such as, but not limited to, un-plugging dust lines, timbering, or maintaining pumps.
e The CleanSpace EXfull or half mask PAPR is intrinsically safe and is certified by UL under the ANSI/UL
6007911 standard to be used in hazardous locations because it meets the intrinsic safety protection level. The unit is acceptable in other jurisdictions for use in mines with the potential for methane accumulation. The CleanSpace EX PAPR is an air filtering, fan assisted positive pressure mask which is used in different applications, including high dust environments. The CleanSpace EX
PAPR is lightweight and compact and requires no hoses, cables, or beltmounted battery packs. It requires few replacement parts and no servicing or maintenance. It is compatible with personal protective equipment.
f The 3M Versaflo TR800 PAPR is intrinsically safe and is certified by UL
under the ANSI/UL 6007911 standard to be used in hazardous locations. This unit is acceptable in other jurisdictions for use in mines with the potential for methane accumulation. The 3M Versaflo TR800 is ergonomically designed for greater movement in tight work spaces.
It helps protect against certain airborne
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contaminates and has a multi-speed blower. The PAPR is easy to use and maintain and has audible and visual alarms. The 3M Versaflo TR800 battery offers a long run time and charges quickly. The unit has interchangeable components which will enable the petitioner to customize the PAPR
system to help meet the needs of their specific applications.
The petitioner proposes the following alternative method:
a The petitioner will use the CleanSpace EX and 3M Versaflo TR800
PAPRs in return air outby the last open crosscut to protect miners from exposure to respirable dust.
b The batteries for the PAPRs will be charged outby the last open crosscut when not in operation.
c The 3M Versaflo TR800 batteries will be charged by the 3M battery Charger TR641N or the 3M 4-Station battery charger TR644N.
d The 3M Versaflo TR800 PAPR
will only use the 3M TR830 battery pack.
e Affected miners will be trained in the proper use and care of the PAPR
units in accordance with manufacturers instructions.
f The PAPRs will be checked for physical damage and the integrity of the case.
g If methane is detected in concentrations of 1.0 percent or more, procedures in accordance with 30 CFR
75.323 will be followed.
The petitioner asserts that the alternate method proposed will at all times guarantee no less than the same measure of protection afforded the miners under the mandatory standard.
Docket Number: M2021028C.
Petitioner: Emery County Coal Resources, Inc., P.O. Box 910, East Carbon, Utah ZIP 84520.
Mine: Lila Canyon Mine, MSHA ID
No. 4202241, located in Carbon County, Utah.
Regulation Affected: 30 CFR
75.1002a Installation of electric equipment and conductors;
permissibility.
Modification Request: The petitioner requests a modification of the existing standard, 30 CFR 75.1002a, as it relates to the use of an alternative method of respirable dust protection for miners at the Lila Canyon mine in Utah.
Specifically, the petitioner is applying to utilize the battery-powered CleanSpace EX and 3M Versaflo TR800
PAPRs within 150 feet of pillar workings or the longwall face.
The petitioner states that:
a The 3M Airstream Mining Headgear-Mounted model PAPR
provides a constant flow of filtered air
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which results in a reduction of the miners exposure to respirable dust, thus reducing their health risks.
b With discontinuance of the MSHA-approved 3M Airstream Mining Headgear-Mounted model PAPR, there are no other MSHA-approved PAPRs available.
c The use of the CleanSpace EX and 3M Versaflo TR800 PAPRs will provide miners in MMU 0040 with constant flow of filtered air which results in a reduction of miners exposure to respirable dust, thus reducing their health risks.
d The use of the CleanSpace EX and 3M Versaflo TR800 PAPRs will protect miners from respirable dust when working within 150 feet of pillar workings, the longwall face, and the section faces.
e The CleanSpace EXfull or half mask PAPR is intrinsically safe and is certified by UL under the ANSI/UL
6007911 standard to be used in hazardous locations because it meets the intrinsic safety protection level. The unit is acceptable in other jurisdictions for use in mines with the potential for methane accumulation. The CleanSpace EX PAPR is an air filtering, fan assisted positive pressure mask which is used in different applications, including high dust environments. The CleanSpace EX
PAPR is lightweight and compact and requires no hoses, cables, or beltmounted battery packs. It requires few replacement parts and no servicing or maintenance. It is compatible with personal protective equipment.
f The 3M Versaflo TR800 PAPR is intrinsically safe and is certified by UL
under the ANSI/UL 6007911 standard to be used in hazardous locations. This unit is acceptable in other jurisdictions for use in mines with the potential for methane accumulation. The 3M Versaflo TR800 is ergonomically designed for greater movement in tight work spaces.
It helps protect against certain airborne contaminates and has a multi-speed blower. The PAPR is easy to use and maintain and has audible and visual alarms. The 3M Versaflo TR800 battery offers a long run time and charges quickly. The unit has interchangeable components which will enable the petitioner to customize the PAPR
system to help meet the needs of their specific applications.
The petitioner proposes the following alternative method:
a The petitioner will use the CleanSpace EX and 3M Versaflo TR800
PAPRs to protect miners from exposure to respirable dust.
b The batteries for the PAPRs will be charged outby the last open crosscut when not in operation.

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