Section 156, The Customs Regu- Citation

Without derogating from the generality of the provisions ForiD:s ofof regulation 154 a permit may be- pernnt. (a) permanent, authorising the person to whom it is issued to enter or take a particular animal or vehicle into a Customs area or any specified part thereof at all times and subject to such restrictions and for such period (if any) as may be endorsed on the permit; or (b) temporary, authorising the person to whom it is issued to enter or take a particular"animal or vehicle into a Customs area or any specified part thereof on a specified day or days and during the hours (if any) indicated on the permit: Provided that if the Comptroller so requires there shall be affixed to any permanent permit a photograph of the person to whom it is issued supplied by such person.