4.—(1) The manager shall appoint a sufficient number of suitably qualified and competent persons to carry out shotfiring operations, and any such appointee shall in these Regulations be referred to as a shotfirer.
(2) The manager may appoint such number of persons as he considers appropriate to undergo training in shotfiring operations under the close personal supervision of a shotfirer, and any such appointee shall in these Regulations be referred to as a trainee shotfirer.
(3) The manager shall ensure that a record is made of every appointment effected under paragraph (1) or (2).
(4) A person shall be suitably qualified to be appointed as a shotfirer pursuant to paragraph (1) only if he is at last 21 years of age and–
(a)he holds the qualifications approved for that post by the Health and Safety Executive; or
(b)where no qualifications have been so approved, he is suitably qualified by way of education, knowledge and experience to undertake the duties of that post effectively.
(5) No person’s wages shall depend upon the number of shots fired by him or the amount of mineral obtained by shots fired by him.