Safe use of Acetylene - Licensing

What is a licence?

A licence is a document that legally permits the holder to manufacture, compress and/or fill cylinders with compressed acetylene gas at equal to or greater than 0.62 bar (g) (referred to in the ASR 2014 as a 'relevant activity').

The holder of the licence is the person legally permitted to conduct the relevant activity or activities covered by the licence.

Transitional provisions

Where prior to 1 October 2014, the manufacture and/or compression of acetylene gas was permitted under an approval or exemption certificate, the person carrying on that activity (or combination of these activities) is deemed to hold a licence granted under ASR 2014 , subject to any conditions in the original approval or exemption (regulation 15(1)).

Any variation, transfer or renewal will require an application under regulation 6 of the ASR 2014.

Licensing Authority

If the relevant activity to be licenced will be carried out on ONR regulated premises, the licensing authority will be the Officer for Nuclear Regulation (ONR). Otherwise it will be the Health and Safety Executive.

ONR regulated premises means any premises which are, or are on—

  1. A GB nuclear site (within the meaning of section 68 of the Energy Act 2013(10))
  2. An authorised defence site (within the meaning of regulation 2(1) of the Health and Safety (Enforcing Authority) Regulations 1998(11))
  3. A new nuclear build site (within the meaning of regulation 2A of those Regulations(12))


Fees are payable under The Health and Safety and Nuclear (Fees) Regulations 2022 (

These fees apply from 1 October 2014.

Apply for a licence

To apply for a new , renewal, variation or transfer of a  licence, please complete the application form ASR 1 and forward with any supporting documentation (Please refer to' Guidance for applicants' on the application form) and fee to the relevant licensing authority.

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Updated 2024-03-26