General provisions as to approved premises
7.—(1) A methylator shall ensure that all his premises approved under regulation 3 above are, to the proper officer’s satisfaction, ventilated, lit and equipped with the means for taking account of spirits or denaturant.
(2) A methylator shall ensure that his containers approved for the storage of denaturant are conspicuously marked on the outside as being for use for that purpose only.
(3) The proper officer may, by giving written notice to a methylator, restrict the hours during which his approved premises or parts of them are permitted to be open, and he may vary the notice but except on public holidays no such restriction shall prevent the premises from being open during the hours from 8 am to 6 pm from Monday to Friday.