20.—(1) Suitable and sufficient sanitary conveniences shall be provided at readily accessible places.
(2) Without prejudice to the generality of paragraph (1), sanitary conveniences shall not be suitable unless—
(a)the rooms containing them are adequately ventilated and lit;
(b)they and the rooms containing them are kept in a clean and orderly condition; and
(c)separate rooms containing conveniences are provided for men and women except where and so far as each convenience is in a separate room the door of which is capable of being secured from inside.
(3) It shall be sufficient compliance with the requirement in paragraph (1) to provide sufficient sanitary conveniences in a workplace which is not a new workplace, a modification, an extension or a conversion and which, immediately before this regulation came into force in respect of it, was subject to the provisions of the Factories Act 1961, if sanitary conveniences are provided in accordance with the provisions of Part II of Schedule 1.