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  2. Hearing protection device - Wikipedia

    en.wikipedia.org/wiki/Hearing_protection_device

    Occupational Safety and Health Administration (1983; 29 CFR 1910.95 [8]) requires the use of HPDs in occupational settings when the noise exposure levels are equal to or above an 8-hour time-weighted average of 90 dB-A.

  3. Federal Aviation Administration - Wikipedia

    en.wikipedia.org/wiki/Federal_Aviation...

    A Designated Engineering Representative (DER) is an engineer who is appointed under 14 CFR section 183.29 to act on behalf of a company or as an independent consultant (IC). [71] The DER system enables the FAA to delegate certain involvement in airworthiness exams, tests, and inspections to qualified technical people outside of the FAA. [72]

  4. Income inequality in the United States - Wikipedia

    en.wikipedia.org/wiki/Income_inequality_in_the...

    According to a 2018 report by the Organization of Economic Cooperation and Development (OECD), the US has higher income inequality and a larger percentage of low income workers than almost any other advanced nation because unemployed and at-risk workers get less support from the government and a weak collective bargaining system. [94]

  5. United States Coast Guard - Wikipedia

    en.wikipedia.org/wiki/United_States_Coast_Guard

    [34] [35] The Coast Guard is further defined by Title 14 of the United States Code: "The Coast Guard as established January 28, 1915, shall be a military service and a branch of the armed forces of the United States at all times. The Coast Guard shall be a service in the Department of Homeland Security, except when operating as a service in the ...

  6. Psychology - Wikipedia

    en.wikipedia.org/wiki/Psychology

    By 1370, the Chinese system required a stratified series of tests, involving essay writing and knowledge of diverse topics. The system was ended in 1906. [ 188 ] : 41–2 In Europe, mental assessment took a different approach, with theories of physiognomy —judgment of character based on the face—described by Aristotle in 4th century BC Greece.

  7. Cuba - Wikipedia

    en.wikipedia.org/wiki/Cuba

    Cuba has a universal health care system which provides free medical treatment to all Cuban citizens, [25] ... 34 percent earn the equivalent of $50 to $100 per month ...

  8. Common European Framework of Reference for Languages

    en.wikipedia.org/wiki/Common_European_Framework...

    An intergovernmental symposium in 1991 titled "Transparency and Coherence in Language Learning in Europe: Objectives, Evaluation, Certification" held by the Swiss Federal Authorities in the Swiss municipality of Rüschlikon found the need for a common European framework for languages to improve the recognition of language qualifications and help teachers co-operate.