Where a request is made to the Department to grant an exemption from a requirement of these Regulations, that request shall be made in writing and shall state the full extent of the reasons for the exemption sought.

Where the Department is satisfied that an exemption may be granted without prejudice to safety or interference with the supply to others, the Department may grant such an exemption as it thinks appropriate.

An exemption granted under this regulation shall be for such period as the Department shall specify when granting that exemption or, where no period is so specified, for a period of 25 years.