Application of these Regulations
4. The amendments made by regulations 2 and 3 of, and the Schedule to, these Regulations apply only in relation to a voucher—
(a)accepted or used pursuant to regulation 12 or regulation 18 of the principal Regulations on or after 1st April 1996; or
(b)sent to a Health Board or NHS trust pursuant to regulation 14(2)(c) of the principal Regulations in respect of cost incurred on or after that date.