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  2. Section 608 - Wikipedia

    en.wikipedia.org/wiki/Section_608

    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]

  3. California Contractors State License Board - Wikipedia

    en.wikipedia.org/wiki/California_Contractors...

    The individual may run their own contractor business or work as a qualifying individual (QI) to qualify another company for license. To be licensed, they must have: Completed examination application and $330 fee; California business license and Tax ID (if LLC or Corporation) Fingerprinting Live Scan; Completion of "Law and Business" exam

  4. Heating, ventilation, and air conditioning - Wikipedia

    en.wikipedia.org/wiki/Heating,_ventilation,_and...

    Central, "all-air" air-conditioning systems (or package systems) with a combined outdoor condenser/evaporator unit are often installed in North American residences, offices, and public buildings, but are difficult to retrofit (install in a building that was not designed to receive it) because of the bulky air ducts required. [32] (Minisplit ...

  5. Air conditioning - Wikipedia

    en.wikipedia.org/wiki/Air_conditioning

    The efficiency of air conditioners is often rated by the seasonal energy efficiency ratio (SEER), which is defined by the Air Conditioning, Heating and Refrigeration Institute in its 2008 standard AHRI 210/240, Performance Rating of Unitary Air-Conditioning and Air-Source Heat Pump Equipment. [61]

  6. Business license - Wikipedia

    en.wikipedia.org/wiki/Business_license

    This reform combined the business license, organization code certificate, and tax registration certificate into a single document called the "Three-in-One" business license, featuring a unique 18-digit identifier for every business called the Unified Social Credit Code. Building on the success of the "Three-in-One" reform, China combined the ...

  7. Operator assistance - Wikipedia

    en.wikipedia.org/wiki/Operator_assistance

    A third number call or third party call is an operator assisted telephone call that can be billed to the party other than the calling and called party. The operator calls the third number for the party to accept the charges before the call can proceed. Time and charges was a service that could be requested of an operator before a call began ...

  8. Regulation and licensure in engineering - Wikipedia

    en.wikipedia.org/wiki/Regulation_and_licensure...

    Regulation and licensure in engineering is established by various jurisdictions of the world to encourage life, public welfare, safety, well-being, then environment and other interests of the general public [1] and to define the licensure process through which an engineer becomes licensed to practice engineering and to provide professional services and products to the public.

  9. Property condition assessment - Wikipedia

    en.wikipedia.org/wiki/Property_condition_assessment

    Property condition assessments (PCAs) (also known as the property condition report, or PCR) are due diligence projects associated with commercial real estate.Commercial property and building inspections are important for clients seeking to know the condition of a property or real estate they may be purchasing, leasing, financing or simply maintaining.