Article 10 of the Principal Regulations is hereby amended -
(a) by the insertion after subarticle (1) (d) of the following:
"(e) if an undertaking referred to in Article 18A of these Regulations has a form different to those referred to in sub-article (a) above, it may continue to use that form until the 12th day of December, 1987.",
(b) by the insertion after subarticle (2) of the following:
"(2A) Undertakings referred to in Article 18A of these Regulations which wish to extend their business within the meaning of Articles 8(2) and 10 of the directive may not do so unless they comply immediately with the appropriate requirements of these Regulations.".