Health and Safety at Work etc. Act 1974

4(1)Prohibiting the carrying on of any specified activity or the doing of any specified thing except under the authority and in accordance with the terms and conditions of a licence, or except with the consent or approval of a specified authority.E+W+S

(2)Providing for the grant, renewal, variation, transfer and revocation of licences (including the variation and revocation of conditions attached to licences).