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Section 608 (together with Section 609, which covers motor vehicles) of the Clean Air Act serves as the main form of occupational licensure for technicians in the heating, ventilation, and air conditioning (HVAC) industry in the United States. [1]
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The Air Conditioning, Heating, and Refrigeration Institute (AHRI), formed in 2008 by a merger of the Air-Conditioning and Refrigeration Institute (ARI) and the Gas Appliance Manufacturers Association (GAMA), is a North American trade association of manufacturers of air conditioning, heating, and commercial refrigeration equipment. [1]
The idea of a department of Urban Affairs was proposed in a 1957 report to President Dwight D. Eisenhower, led by New York governor Nelson A. Rockefeller. [3] The idea of a department of Housing and Urban Affairs was taken up by President John F. Kennedy, with Pennsylvania Senator and Kennedy ally Joseph S. Clark Jr. listing it as one of the top seven legislative priorities for the ...
North Carolina has had three constitutions, adopted in 1776, 1868, and 1971, respectively. Like the federal constitution does for the federal government, the North Carolina Constitution both provides for the structure of the North Carolina government and enumerates rights which the North Carolina government may not infringe.
HVAC (Heating, Ventilation and Air Conditioning) equipment needs a control system to regulate the operation of a heating and/or air conditioning system. [1] Usually a sensing device is used to compare the actual state (e.g. temperature) with a target state.
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