15.—(1) The supply of a product, or an offer to supply a product, is not an offence under regulation 4(1), 10(1) or 14(1) if—
(a)the supply or offer to supply is made within the period of six months beginning with the coming into force date; and
(b)the person supplying or offering to supply the product obtained the product before the coming into force date.
(2) In paragraph (1), “the coming into force date” means the date on which these Regulations (except for regulation 4(3) and (4)) come into force.