5. These Regulations shall apply in relation to supplies of drugs and appliances made after 31st March 2001 except that–
(a)the amendment of regulation 8 (pre-payment certificates) of the principal Regulations by regulation 3(2) above shall apply only where the application referred to in paragraph (1) of the said regulation 8 is received after that date; and
(b)the substitution of Schedule 3 by regulation 3(3) above shall apply only where the examination or first examination leading to the supply of the specified appliance takes place after that date.