3.  Notwithstanding the provisions of regulation 2 above, the system of classifying business activities which was prescribed for the purpose of section 364(3) of the Companies Act 1985 by regulation 5(2) of the 1990 Regulations may continue to be used in relation to an annual return delivered to the registrar on or before 5th May 1997 instead of the system prescribed for that purpose by these Regulations.