62.—(1) A Scheme employer must contribute to the appropriate fund in each year covered by a rates and adjustment certificate under regulation 60 (actuarial valuations of pension funds) or 61 (special circumstances where revised actuarial valuations and certificates must be obtained) the amount appropriate for that authority as calculated in accordance with the certificate and paragraph (4).
(2) During each of those years a Scheme employer must make payments to the appropriate fund on account of the amount required for the whole year.
(3) Those payments on account must—
(a)be paid at the end of the intervals determined under regulation 64 (payment by Scheme employers to administering authorities); and
(b)equal the appropriate proportion of the whole amount due under paragraph (1) for the year in question.
(4) An employer's contribution for any year is the primary percentage for that year of—
(a)the pensionable pay on which contributions have been paid into the fund by active members in accordance with regulations 9 to 12, 14 and 15 (contributions), except where sub-paragraph (b) applies; and
(b)the assumed pensionable pay in respect of members on leave due to sickness or injury on reduced contractual pay or no pay or on child-related leave,
increased or reduced by any secondary rate adjustments specified for that employer for that year in the rates and adjustments certificate except where actual pay received during child-related leave is greater than assumed pensionable pay.
(5) The primary percentage is the primary rate of the employer's contribution specified in that certificate expressed as a percentage of the pay of its employees who are active members.
(6) A Scheme employer must also pay into the appropriate fund in each year any employer contributions made under regulation 16 (additional pension contributions).