4. There shall be inserted after regulation 52 of the principal Regulations the following provision:
52A.—(1) This paragraph applies to a member of a police force who was on 31st March 1990 occupying a house or quarters with which he was provided by his police authority free of rent and rates and who on and after 1st April 1990 continues to occupy such accommodation free of rent.
(2) A member to whom paragraph (1) applies shall, subject to paragraph (3), be paid an allowance (“provided accommodation allowance”) at the rate of £300 a year.
(3) A provided accommodation allowance shall cease to be payable to a member on 1st April 1993 or on such date as he ceases to be provided with a house or quarters free of rent, whichever shall first occur.”.