3.—(1) This paragraph applies when a person—
(a)is a part-time contributor who was in pensionable employment at the end of the contribution period, whose principal election has not ceased to have effect under paragraph 7 of Schedule 4 and who has not made a payment under paragraph 6 of Schedule 4;
(b)is a full-time or part-time contributor who ceases to be in pensionable employment before the end of the contribution period, does not again enter such employment within one month and before becoming entitled to payment of retirement benefits and does not make any payment under paragraph 8, 9 10 or 12 of Schedule 4; or
(c)is a part-time contributor who ceases to be in pensionable employment before the end of the contribution period and makes a payment under paragraph 9(3) or (4) of Schedule 4,
and where neither paragraphs 4 nor 5 apply.
(2) The person is entitled to count as reckonable service
where—
A is the past period;
B is the contribution period; and
C is determined in accordance with sub-paragraph (3).
(3) The value of C is as follows:—
(a)where the person falls within sub-paragraph (1)(a), C is the period which the person is entitled to count as reckonable service which arises from the contribution period;
(b)where the person falls within sub-paragraph (1)(b) and is a full-time contributor, C is so much of the contribution period as has elapsed when the pensionable employment ended;
(c)where the person falls within sub-paragraph (1)(b) and is a part-time contributor, C is the period which the person is entitled to count as reckonable service which arises from so much of the contribution period as has elapsed when the pensionable employment ended;
(d)where the person falls within sub-paragraph (1)(c) and makes a payment under paragraph 9(3) of Schedule 4, C is so much of the contribution period as has elapsed when the pensionable employment ended;
(e)where the person falls within sub-paragraph (1)(c) and makes a payment under paragraph 9(4) of Schedule 4, C is the aggregate of—
(i)the period which the person is entitled to count as reckonable service which arises from so much of the contribution period as has elapsed when the pensionable employment ended; and
(ii)the period from the date when the pensionable employment ended to the end of the contribution period.