An authorised examiner may at any time by notice require the registered keeper of an eligible vehicle for which a reduced pollution certificate is in force to submit it, at a place and within a period specified in the notice (or at such other place or within such longer period as may be agreed by the Secretary of State), for a re-examination for the purpose of determining whether it still satisfies the reduced pollution requirements.

Paragraphs 2(3) and 3(2) (except paragraph 3(2)(b)) apply to a re-examination under this paragraph.

If an eligible vehicle for which a reduced pollution certificate is in force is found after a re-examination under this paragraph to satisfy the reduced pollution requirements, the authorised examiner who carried out the re-examination shall give notice to that effect to the registered keeper or to the person who brought the vehicle to the re-examination and to the Secretary of State.

For the purposes of this paragraph “re-examination” includes an examination of an eligible vehicle not previously examined.