12. For regulation 41 there shall be substituted the following regulation—
41.—(1) Subject to paragraph (2) below, each food authority shall enforce and execute these Regulations in its area.
(2) Each port health authority shall enforce and execute these Regulations in its district in relation to imported food.
(3) For the purposes of this regulation “food authority” shall mean—
(a)for each non-metropolitan county, metropolitan district and London borough, the council of that county, district or borough, and for the City of London and the Inner Temple and the Middle Temple, the Common Council of the City of London;
(b)as respects a non-metropolitan district, in relation to regulation 40(f) only, and in addition to any other food authority, severally, the council of that district.”.