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  2. UN Recommendations on the Transport of Dangerous Goods

    en.wikipedia.org/wiki/UN_Recommendations_on_the...

    "Dangerous goods" (also known as "hazardous materials" or "HAZMAT" in the United States) may be a pure chemical substance (e.g. TNT, nitroglycerin), mixtures (e.g. dynamite, gunpowder) or manufactured articles (e.g. ammunition, fireworks). The transport hazards that they pose are grouped into nine classes, which may be subdivided into divisions ...

  3. Hazardous Materials Transportation Act - Wikipedia

    en.wikipedia.org/wiki/Hazardous_Materials...

    It is in the Secretary's authority to designate material or a group or class of material as hazardous when they meet the definition of hazardous material under the Act. A hazardous material, as defined by the Secretary, is any particular quantity or form of a material that may pose an unreasonable risk to health and safety or property during ...

  4. Legal working age - Wikipedia

    en.wikipedia.org/wiki/Legal_working_age

    14: Maximum of 8 hours per day and 40 hours per week during the non-school day period; During the school day can only work 3 hours per day and 18 hours per school week; Arizona law further limits employment of children under the age of 16 making it unlawful for a child under the age of 16 to work between the hours of 9:30 p.m. and 6 a.m.

  5. Teens as young as 14 can work in NC. These are the ... - AOL

    www.aol.com/news/teens-young-14-nc-industries...

    Many teens in North Carolina can still get jobs while school is out, but there are laws regarding employment for minors that restrict the type of work they can do and how long they can be on the ...

  6. Child labor laws in the United States - Wikipedia

    en.wikipedia.org/wiki/Child_labor_laws_in_the...

    It was a matter for the states to deal with and created their own child labor laws including age and schooling requirements. For regular, full-time work, "age and schooling certificates", "work permits", or "employment certificates" were issued in States to children, usually 14 or 15, before they may go to work in certain occupations, generally ...

  7. Process Safety Management (OSHA regulation) - Wikipedia

    en.wikipedia.org/wiki/Process_Safety_Management...

    Process Safety Management of Highly Hazardous Chemicals is a regulation promulgated by the U.S. Occupational Safety and Health Administration (OSHA). [1] It defines and regulates a process safety management (PSM) program for plants using, storing, manufacturing, handling or carrying out on-site movement of hazardous materials above defined amount thresholds.

  8. Hazardous waste in the United States - Wikipedia

    en.wikipedia.org/wiki/Hazardous_waste_in_the...

    EPA developed strict requirements for all aspects of hazardous waste management including the treatment, storage, and disposal of hazardous waste. In addition to these federal requirements, states may develop more stringent requirements or requirements that are broader in scope than the federal regulations.

  9. Child-resistant packaging - Wikipedia

    en.wikipedia.org/wiki/Child-resistant_packaging

    The child-resistant locking closure for containers was invented in 1967 by Dr. Henri Breault. [7]A history of accidents involving children opening household packaging and ingesting the contents led the United States Congress to pass the Poison Prevention Packaging Act of 1970, authored by U.S. Senator Frank E. Moss of Utah.