# The Road Vehicles (Authorisation of Special Types) (General) Order 2003, Paragraph 3

Extent: E+W+S

(1) The owner of any vehicle (or, if it is in the possession of a different person, that person) must ensure that any gas container used on that vehicle is subject to a periodic test by an accredited testing laboratory every three years, or with such greater frequency as the manufacturer specifies.
(2) The periodic test must include—
(a) the pressure test specified in paragraph 2, and
(b) an internal and external visual inspection carried out in accordance with paragraph 4.4.2 and 4.4.3 of BS 5430 : Part I : 1990 or, where an equivalent procedure has been specified by the manufacturer, in accordance with that procedure.
(3) Nothing in sub-paragraph (1) affects the obligation imposed by regulation 100 of the Construction and Use Regulations.

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Source: https://www.legislation.gov.uk/uksi/2003/1998/schedule/12/paragraph/3 (the official version)
Page: https://openlegislation.uk/road-vehicles-authorisation-of-special-types-general-order-2003/schedule-12/paragraph-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.