3.—(1) Subject to paragraph (2), this regulation applies to a rail vehicle first brought into use after 31st December 1998.
(2) This regulation does not apply to a rail vehicle which belongs to a class of rail vehicle —
(a) first brought into use before 1st January 1999; or
(b) first brought into use after 1st July 2008.
(3) Subject to paragraph (7), the requirements of Part 1 of Schedule 1 apply in relation to a rail vehicle to which this regulation applies.
(4) Subject to paragraphs (6) and (7), the requirements of Part 2 of Schedule 1 apply in relation to a rail vehicle to which this regulation applies—
(a) if and to the extent that it already conforms with them when these Regulations come into operation;
(b) if it is constructed pursuant to a contract entered into after 28th April 2014 and does not belong to a class of rail vehicle first brought into use before that date; or
(c) to the extent indicated in paragraph (6) if after 28th April 2014 any refurbishment work described in column (2) of the table in Schedule 4 is carried out to it.