# Commission Regulation (EU) No 748/2012 of 3 August 2012 laying down implementing rules for the airworthiness and environmental certification of aircraft and related products, parts and appliances, as well as for the certification of design and production organisations (recast) (Text with EEA relevance), Division 21.A.619: Duration and continued validity

Extent: E+W+S+N.I.

(a)A UKTSO authorisation, issued by the CAA under point 21.B.480, is valid from the date of issue and remains valid for an unlimited period subject to compliance with the following conditions:
1..the conditions set when the UKTSO authorisation was issued continue to be observed by the UKTSO authorisation holder;
2..the obligations specified in point 21.A.609 continue to be discharged by the UKTSO authorisation holder;
3..the UKTSO authorisation holder, and its suppliers and subcontractors as appropriate, acknowledge that the CAA may carry out investigations in accordance with point 21.A.8;
4..in the opinion of the CAA the UKTSO article has not given rise to unacceptable hazards in service;
5..the UKTSO authorisation has not been revoked by the CAA under point 21.B.65 or surrendered by its holder.
(b)Upon surrender or revocation, the UKTSO authorisation must be returned to the CAA.

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Source: https://www.legislation.gov.uk/eur/2012/748/annex/I/section/A/division/subpart+o/division/21.a.619 (the official version)
Page: https://openlegislation.uk/eu-regulation-2012-748/annex-I/section-A/division-subpart+o/division-21.a.619
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.