20.—(1) Where an operator or carrier has carried out work with ionising radiation before the date of the coming into force of these Regulations, an assessment made pursuant to any enactment for the purposes of identifying those matters referred to in sub-paragraphs (c) and (d) of regulation 4(1) shall be deemed to have been made pursuant to regulation 4.
(2) Where work with ionising radiation to which these Regulations apply has commenced before the date of the coming into force of these Regulations—
(a)an operator or carrier who is required to send a report of assessment to the Executive under regulation 6(1) shall be deemed to have complied with the requirements of that paragraph if such report is sent to the Executive within 5 months of that date or within such longer time as the Executive may agree;
(b)an operator who is required to prepare an operator’s emergency plan under regulation 7(1) and a carrier who is required to prepare a carrier’s emergency plan under regulation 8(1) shall be deemed to have complied with the requirements of that paragraph if that plan is prepared within 6 months of that date or within such longer time as the Executive may agree, and in such case paragraph (3) of regulation 7 or 8 respectively and regulation 9(9) shall not apply;
(c)an operator who is required to provide information to the local authority in accordance with the requirements of paragraph (4) of regulation 9 shall be deemed to have complied with that paragraph if he provides the required information to the local authority within 6 months of that date or within such longer time as the Executive may agree;
(d)an operator or carrier who is required to notify the Executive of the determined dose levels under regulation 14(2) shall be deemed to have complied with the requirements of that regulation if such notification is given to the Executive within 5 months of that date or within such longer time as the Executive may agree; and
(e)subject to paragraph (3) below, an operator or carrier who is required to supply information to the public pursuant to paragraph (1) of regulation 16 shall be deemed to have complied with that paragraph if the information specified in Schedule 9 is supplied within a reasonable time after preparation of the off-site emergency plan or the carrier’s emergency plan, as the case may be.
(3) Where prior to the coming into force of these Regulations an operator or carrier has supplied information to the public pursuant to regulation 3 of the Public Information for Radiation Emergencies Regulations 1992(1), the supply of that information, to the extent that it relates to matters to which these Regulations apply, shall for a period of 3 years from the date upon which it was supplied or, where that information has been updated, the date upon which it was last updated, be deemed to comply with the requirements of regulation 16(1) of these Regulations and for the purposes of these Regulations that information shall be treated as if it had been supplied pursuant to regulation 16(1).