Documents

Refuge Alternatives for Underground Coal Mines

Federal Register · Proposed Rule · Sep 18, 2015

The comment period closed on April 2, 2015. III. Questions and Issues for Discussion A. … Discuss options for piping air over several miles through a mine to provide a clean air supply and sufficient air pressure to a built-in-place refuge when a borehole directly into the refuge is unavailable

Diesel Particulate Matter Exposure of Underground Coal Miners

Federal Register · Proposed Rule · Apr 9, 1998

The Clean Air Act and Mobile Sources The Clean Air Act authorized the Federal Environmental Protection Agency (EPA) to establish nationwide standards for new mobile vehicles, including those powered … EPA, The Plain English Guide to the Clean Air Act, EPA 400-K-93-001, April 1993.

Diesel Particulate Matter Exposure of Underground Metal and Nonmetal Mines

Federal Register · Proposed Rule · Sep 7, 2005

ACTION: Proposed rule; notice of public hearings; close of comment period; request for data. … We request comments on whether a five-year phase-in period for lowering the final concentration limit to 160 TC μg/m 3 complies with Section 101(a)(9) of the Mine Act. VIII.

Verification of Underground Coal Mine Operators' Dust Control Plans and Compliance Sampling for Respirable Dust

Federal Register · Proposed Rule · Mar 6, 2003

In response to requests from commenters, an extension of the comment period for the NPRM was published in the Federal Register (65 FR 49215) on August 11, 2000; the rulemaking comment period was extended … The Agency allowed 60 days for public comment and received no comments, no requests for an extension of the comment period, and no requests for a public hearing.

Lowering Miners' Exposure to Respirable Crystalline Silica and Improving Respiratory Protection

Federal Register · Proposed Rule · Jul 13, 2023

PAPRs utilize a blower to move ambient air through an air-purifying filter that removes particulates and delivers clean air to the wearer. … childhood leukemia during the NPRM's public comment period.

Lowering Miners' Exposure to Respirable Coal Mine Dust, Including Continuous Personal Dust Monitors

Federal Register · Proposed Rule · Oct 19, 2010

MSHA solicits comment on the proposed phase-in periods for lowering the respirable dust limits from 1.0 mg/m 3 to 0.5 mg/m 3 for intake air courses, belt air courses, and part 90 miners. … MSHA believes that when belt air is used as a source of intake air, the dust concentration in the belt air must be at or below 0.5 mg/m 3 to ensure that relatively clean air is used to ventilate the

Diesel Particulate Matter Exposure of Underground Metal and Nonmetal Miners

Federal Register · Proposed Rule · Oct 29, 1998

The Clean Air Act and Mobile Sources. … Clean Air Act Amendments of 1990, January 23, 1990.

Air Quality, Chemical Substances, and Respiratory Protection Standards

Federal Register · Proposed Rule · Nov 19, 2004

The comment period for this group of provisions closed on March 2, 1990. … The comment period for this group of provisions closed on December 14, 1990.

Measuring and Controlling Asbestos Exposure

Federal Register · Proposed Rule · Mar 29, 2002

1.0 f/cc as averaged over a sampling period of thirty (30) minutes. … It also lowered the short-term exposure limit to 1.0 f/cc as averaged over a sampling period of thirty (30) minutes.

Refuge Alternatives for Underground Coal Mines

Federal Register · Proposed Rule · Aug 8, 2013

Statutory and Regulatory History The Mine Improvement and New Emergency Response Act of 2006 (MINER Act) amended the Federal Mine Safety and Health Act of 1977 (Mine Act). … over a period of 96 hours.

Diesel Particulate Matter Exposure of Underground Metal and Nonmetal Miners

Federal Register · Proposed Rule · Aug 14, 2003

ACTION: Proposed rule; notice of public hearings; close of comment period; request for data. … The comment period closed on November 25, 2002.

Refuge Alternatives for Underground Coal Mines

Federal Register · Proposed Rule · Jun 16, 2008

ACTION: Proposed rule; notice of public hearings and close of comment period. … This provision is intended to assure that only clean, uncontaminated air enters the compressors.

Powered Air Purifying Respirators (PAPRs) in Underground Mines

Federal Register · Proposed Rule · Jul 1, 2025

In addition, during the comment period and rulemaking process, ISA standards will be available for review, free of charge, at MSHA, Office of Standards, Regulations, and Variances, Room C3522, 200 … In addition, during the comment period and rulemaking process, UL standards will be available for review, free of charge, at MSHA, Office of Standards, Regulations, and Variances, Room C3522, 200 Constitution

Electronic Surveying Equipment in Underground Mines

Federal Register · Proposed Rule · Jul 1, 2025

In addition, during the comment period and rulemaking process, the ANSI/IEC standard will be available for review, free of charge, at MSHA, Office of Standards, Regulations, and Variances, Room C3522, … In addition, during the comment period and rulemaking process, the UL standards will be available for review, free of charge, at MSHA, Office of Standards, Regulations, and Variances, Room C3522, 200 Constitution

Coal Mine Dust Personal Monitors

Federal Register · Proposed Rule · Jan 16, 2009

ACTION: Proposed rule and close of comment period. … the system during the time period sampled.

Diesel Particulate Matter Exposure of Underground Miners

Federal Register · Proposed Rule · Jun 30, 2000

During the hearings and post-hearing comments, there was considerable discussion of an October 1998 report of the Clean Air Scientific Advisory Committee (CASAC) reviewing an EPA Diesel Health Assessment … These were discussed in great detail by the mining community during the hearings and comment period.

Exposure of Underground Miners to Diesel Exhaust

Federal Register · Proposed Rule · Jun 8, 2016

The rule required clean-burning engines on diesel-powered equipment and training for persons maintaining the equipment. … This rule phased-in a final DPM PEL of 160 micrograms of TC per cubic meter of air (160 TC μg/m 3 ) over a two-year period.

Underground Coal Mine Ventilation-Safety Standards for the Use of a Belt Entry as an Intake Air Course To Ventilate Working Sections and Areas Where Mechanized Mining Equipment Is Being Installed or Removed

Federal Register · Proposed Rule · Jan 27, 2003

The post-hearing comment period will close 30 days after the last public hearing on June 30, 2003. … Based on public comments received during this period, MSHA's Assistant Secretary called for a thorough review of safety factors associated with the use of air in the belt entry in the working places in

Examinations of Work Areas in Underground Coal Mines for Violations of Mandatory Health or Safety Standards

Federal Register · Proposed Rule · Dec 27, 2010

ACTION: Proposed rule; notice of close of comment period. … Over the five year review period, there were 91 fatalities in underground coal mines.

Asbestos Exposure Limit

Federal Register · Proposed Rule · Jul 29, 2005

We are requesting comments on whether MSHA's use of routine, periodic bulk sampling would be useful in determining whether or not we should take personal exposure air samples to evaluate miners' exposures … If the image deteriorates, clean and adjust the microscope optics. If the problem persists, consult the microscope manufacturer. 11.