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  2. NIOSH air filtration rating - Wikipedia

    en.wikipedia.org/wiki/NIOSH_air_filtration_rating

    During the COVID-19 pandemic, the mask and respirator market rapidly grew, along with counterfeit respirators. [1] NIOSH, on behalf of the Department of Health and Human Services, filed a trademark application on June 17, 2020, for various 42 CFR 84 trademarks, including the N95, allowing NIOSH to enforce rules on counterfeit masks outside of rules defined in 42 CFR 84.

  3. N95 respirator - Wikipedia

    en.wikipedia.org/wiki/N95_respirator

    A surgical N95 is also rated against fluids, and is regulated by the US Food and Drug Administration under 21 CFR 878.4040, in addition to NIOSH 42 CFR 84. 42 CFR 84, the federal standard which the N95 is part of, was created to address shortcomings in the prior United States Bureau of Mines respirator testing standards, as well as tuberculosis ...

  4. Code of Federal Regulations - Wikipedia

    en.wikipedia.org/wiki/Code_of_Federal_Regulations

    A few volumes of the CFR at a law library (titles 12–26) In the law of the United States, the Code of Federal Regulations (CFR) is the codification of the general and permanent regulations promulgated by the executive departments and agencies of the federal government of the United States. The CFR is divided into 50 titles that represent ...

  5. Federal Aviation Regulations - Wikipedia

    en.wikipedia.org/wiki/Federal_Aviation_Regulations

    Title 14 CFR – Aeronautics and Space is one of the fifty titles that make up the United States Code of Federal Regulations (CFR). Title 14 is the principal set of rules and regulations (sometimes called administrative law) issued by the Department of Transportation and Federal Aviation Administration, federal agencies of the United States which oversee Aeronautics and Space.

  6. Range safety - Wikipedia

    en.wikipedia.org/wiki/Range_safety

    The regulation JERG-1-007E stipulates many of the safety requirements to be maintained on the range on launch day, violations of launch safety, and the procedures to follow after launch aborts and failures and during emergencies on the range. [18]

  7. Arthur Kill Vertical Lift Bridge - Wikipedia

    en.wikipedia.org/wiki/Arthur_Kill_Vertical_Lift...

    As of 2018, U.S. Coast Guard regulations [17] limit lowering the bridge to two 15-minute periods per day, with advance warning and restrictions on lowering during high tide. Conrail, which services Staten Island with one train a day, has stated that they do not see this limitation affecting current rail traffic levels, but it could become a ...

  8. Arlington National Cemetery - Wikipedia

    en.wikipedia.org/wiki/Arlington_National_Cemetery

    Officers of the 8th New York Infantry Regiment at Arlington House in June 1861, two months after the beginning of the American Civil War The Custis-Lee Mansion, originally known as Arlington House, [5] with Union Army soldiers on its lawn during the American Civil War on June 28, 1864 Arlington National Cemetery and the Netherlands Carillon in December 2012 The Old Guard transports the flag ...