The local authority shall, before making any order under the foregoing provisions of this Part of this Act, give public notice in the prescribed manner of their intention to make the order, specifying in the notice a period (not being less than the prescribed period) within which objections may be made to the making of the proposed order, and, if after taking into consideration any objections they have received the local authority are satisfied that it is expedient to make the order and that the occupiers of not less than two-thirds in number of the shops or classes of shops to be affected by the order approve the -7 order, they may make the order.

Where several trades or businesses are carried on in the same shop, the local authority may require the occupier of the shop to specify which trade or business he considers to be his principal trade or business, and no trade or business other than that so specified shall, for the purpose of determining whether the occupiers of not less than two-thirds in number of the shops to be affected by any order approve the order, be considered as carried on in the shop, unless the occupier thereof satisfies the local authority that it forms a substantial part of the business carried on in the shop.