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  2. Self-contained breathing apparatus - Wikipedia

    en.wikipedia.org/wiki/Self-contained_breathing...

    42 CFR 84 replaces the 30 CFR 11 respirator regulation used by NIOSH. As of 2001, quality assurance of SCBA harnesses is required. As of 2001, quality assurance of SCBA harnesses is required. Labels have been updated to remove MSHA emblems from respirator labels, as MSHA is no longer involved in respirator approval except for respirators ...

  3. HEPA - Wikipedia

    en.wikipedia.org/wiki/HEPA

    For respirators, MSHA and NIOSH define HEPA as filters blocking ≥ 99.97% of 0.3 micron DOP particles, under 30 CFR 11 and 42 CFR 84. Since the transition to 42 CFR 84 in 1995, use of the term HEPA has been deprecated except for powered air-purifying respirators . [ 25 ]

  4. Supplemental air carrier - Wikipedia

    en.wikipedia.org/wiki/Supplemental_air_carrier

    The highest-rated narrowbody was a "stretch" convertible DC-8-63CF, which had a higher rating than a passenger 747. [135] By the late 1960s/early 1970s, seven supplementals flew the DC-8-63CF or the closely-related DC-8-61CF: American Flyers, [ 136 ] Capitol, [ 137 ] ONA, [ 138 ] Saturn, [ 139 ] Trans International, [ 140 ] Universal [ 141 ...

  5. United States Coast Guard - Wikipedia

    en.wikipedia.org/wiki/United_States_Coast_Guard

    The Coast Guard CW Operators Association (CGCWOA) is a membership organization comprising primarily former members of the United States Coast Guard who held the enlisted rating of Radioman (RM) or Telecommunications Specialist (TC), and who employed International Morse Code (CW) in their routine communications duties on Coast Guard cutters and ...

  6. On-board diagnostics - Wikipedia

    en.wikipedia.org/wiki/On-board_diagnostics

    ~1994: Motivated by a desire for a state-wide emissions testing program, the CARB issues the OBD-II specification and mandates that it be adopted for all cars sold in California starting in model year 1996 (see CCR Title 13 Section 1968.1 and 40 CFR Part 86 Section 86.094). The DTCs and connectors suggested by the SAE are incorporated into this ...

  7. 2024 United States presidential election - Wikipedia

    en.wikipedia.org/wiki/2024_United_States...

    Presidential elections were held in the United States on November 5, 2024. [a] The Republican Party's ticket—Donald Trump, who was the 45th president of the United States from 2017 to 2021, and JD Vance, the junior U.S. senator from Ohio—defeated the Democratic Party's ticket—Kamala Harris, the incumbent vice president, and Tim Walz, the 41st governor of Minnesota.

  8. Commercial driver's license - Wikipedia

    en.wikipedia.org/wiki/Commercial_driver's_license

    A commercial driver's license is required to operate a tractor-trailer for commercial use. A commercial driver's license (CDL) is a driver's license required in the United States to operate large and heavy vehicles (including trucks, buses, and trailers) or a vehicle of any size that transports hazardous materials or more than 15 passengers (including the driver).