(1) Regulation 17 does not apply to the carrying on of a business under a name by a person who -

(a) carried on that business under that name immediately before these Regulations came into force; and

(b) continues to carry it on under that name,

if it was lawful for the business to be carried on under that name immediately before these Regulations came into force.

(2) Regulation 17 does not apply to the carrying on of a business under a name by a person to whom the business is transferred on or after the date on which these Regulations came into force -

(a) where that person continues to carry on the business under that name; and

(b) where it was lawful for the business to be carried on under that name immediately before the transfer,

during the period of 12 months beginning with the date of the transfer.

(3) Regulation 18 does not apply to the carrying on of a business by a person who -

(a) carried on the business immediately before the date on which these Regulations came into force, and

(b) continues to carry it on under the name that immediately before that date was its lawful business name.