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T1 Certification of Refrigeration and Air Conditioning Service Technicians
T2 La Certification des techniciens de maintenance en froid et climatisation
T2 Certificación de Técnicos de Servicio de Refrigerantes y Aires Acondicionados
A1 United Nations Environment Programme, 
K1 ozone-depleting substance
K1 refrigeration
YR 2016
FD 2016
LK https://wedocs.unep.org/handle/20.500.11822/28364
UL https://wedocs.unep.org/handle/20.500.11822/28364
NO Certification is the means by which a person (or enterprise), as a result of training, education, external review and assessment, receives official approval of being able to competently complete a job or task. Certification can be a legal requirement or a measure undertaken voluntarily for professional advantage. Certification schemes which are mandatory by legislation have the advantage of providing a strong incentive for technicians and enterprises to comply. Certification does not refer to the state of legally being able to practice or work in a profession. That is normally achieved by a licensing. Usually, licences are administered by a governmental entity primarily for public protection purposes and professional associations administer certification schemes. Licencing and certification are similar in that they both require the demonstration of a certain level of knowledge or ability.
DS UN Environment Document Repository
RD Sep 17, 2026