(1)The Secretary of State shall provide for the holding of examinations for the purpose of ascertaining whether persons possess sufficient skill and knowledge for the proper performance of the functions of an inspector, and for the grant of certificates of qualification to persons who pass such examinations.
(2)The Secretary of State may if he thinks fit arrange with some other person for that person to hold examinations for the purpose mentioned in subsection (1) above.
(3)The Secretary of State shall not grant a certificate of qualification to any person while he is under twenty-one years of age.
(4)There shall be charged in respect of any examination which is held by the Secretary of State under this section such fees as the Secretary of State may from time to time with the approval of the Treasury determine.