9. The master shall, on demand by an officer of Customs and Excise, by any Superintendent or by the Registrar General of Shipping and Seamen produce to him—
(a)any crew agreement, or the copy of any crew agreement carried in the ship in pursuance of regulation 5; and
(b)any certificate evidencing an exemption granted by the Secretary of State from the requirements of section 1 of the Act with respect to the ship or to any person in it.