Early legislation In 1891,
Congress passed the first federal statute governing mine safety. The 1891 law was relatively modest legislation that applied only to mines in
U.S. territories, and, among other things, established minimum
ventilation requirements at underground coal mines and prohibited operators from employing children under 12 years of age. In 1910, Congress established the
Bureau of Mines as a new agency in the
Department of the Interior. The Bureau was charged with the responsibility to conduct research and to reduce accidents in the coal mining industry, but was given no inspection authority until 1941, when Congress empowered federal inspectors to enter mines. In 1947, Congress authorized the formulation of the first
code of federal regulations for mine safety. The
Federal Coal Mine Safety Act of 1952 provided for annual inspections in certain underground coal mines, and gave the Bureau limited enforcement authority, including power to issue violation notices and imminent danger withdrawal orders. The 1952 Act also authorized the assessment of
civil penalties against mine operators for noncompliance with withdrawal orders or for refusing to give inspectors access to mine property, although no provision was made for monetary penalties for noncompliance with the safety provisions. In 1966, Congress extended coverage of the 1952 Coal Act to all underground coal mines. The first federal statute directly regulating non-coal mines did not appear until the passage of the Federal Metal and Nonmetallic Mine Safety Act of 1966. The 1966 Act provided for the promulgation of standards, many of which were advisory, and for inspections and investigations; however, its enforcement authority was minimal.
Coal Act The
Coal Mine Safety and Health Act of 1969, generally referred to as the Coal Act, was more comprehensive and more stringent than any previous federal legislation governing the mining industry. The Coal Act included
surface as well as underground coal mines within its scope, required two annual inspections of every surface coal mine and four at every underground coal mine, and dramatically increased federal enforcement powers in coal mines. The Coal Act also required monetary penalties for all violations, and established criminal penalties for knowing and willful violations. The safety standards for all coal mines were strengthened, and health standards were adopted. The Coal Act included specific procedures for the development of improved mandatory
health and safety standards, and provided compensation for miners who were totally and permanently disabled by the progressive respiratory disease caused by the inhalation of fine
coal dust pneumoconiosis or "black lung". In 1973, the
Secretary of the Interior, through administrative action, created the
Mining Enforcement and Safety Administration (MESA) as a new departmental agency separate from the Bureau of Mines. MESA assumed the safety and health enforcement functions formerly carried out by the Bureau to avoid any appearance of a conflict of interest between the enforcement of mine safety and health standards and the Bureau's responsibilities for mineral resource development. (MESA was the predecessor organization to MSHA, prior to March 9, 1978.)
Mine Act and creation of MSHA More recently, Congress passed the
Federal Mine Safety and Health Act of 1977, the legislation which currently governs MSHA's activities. The Mine Act amended the 1969 Coal Act in a number of significant ways, and consolidated all federal health and safety regulations of the mining industry, coal as well as non-coal mining, under a single statutory scheme. The Mine Act strengthened and expanded the rights of miners, and enhanced the protection of miners from retaliation for exercising such rights. Mining fatalities dropped sharply under the Mine Act from 272 in 1977 to 45 in 2014. The Mine Act also transferred responsibility for carrying out its mandates from the Department of the Interior to the Department of Labor, and created MSHA, which is a large independent agency that functions in business oversight.'''''' Additionally, the Mine Act established the independent
Federal Mine Safety and Health Review Commission to provide for independent review of the majority of MSHA's enforcement actions. Congress passed the Mine Improvement and New Emergency Response Act (MINER Act) in 2006. The MINER Act amended the Mine Act to require mine-specific emergency response plans in underground coal mines; added new regulations regarding mine rescue teams and sealing of abandoned areas; required prompt notification of mine accidents; and enhanced civil penalties.
Respirator regulations MSHA inherited regulatory power of respirators from the
Bureau of Mines, which was shared with
NIOSH until the passage of 42 CFR Part 84, which withdrew MSHA's involvement from the approval process of respirators. == Modern regulations ==