17.—(1) Where in accordance with regulation 16(2)(b), a bottle of water is required to be labelled with the name of the spring or its place of exploitation in addition to a trade description—
(a)the same requirement also applies to any written advertisement for that water; and
(b)in any other advertisement, at least equivalent prominence must be given to the place of exploitation or the name of the spring as is given to the trade description.
(2) A person must not advertise a bottle of water as “spring water” in contravention of paragraph (1).