An improvement notice or a prohibition order may be issued with respect to any one or more of the following:

(a) any premises or any part of any premises, food transport vehicle or equipment specified in the notice or order;

(b) all equipment contained in any premises or any part of any premises, or in a food transport vehicle, specified in the notice or order, or any specified equipment so contained;

(c) the handling of food intended for sale by a food business in a specified way or for a specified purpose.