4. Section 1(4) of the Mines Management Act 1971 (which relates to exceptions from statutory responsibilities that may be placed on managers' assistants) shall be modified by the substitution of the following paragraphs for paragraph (d)–
“(d)responsibility for making rules under regulation 19(2)(g) of the Electricity at Work Regulations 1989; and
(e)such other responsibilities as may be prescribed.”.