Regulation 68 of the Principal Regulations is amended as follows:(a) by omitting from paragraph (d) "day-treatment centre" and substituting "day-procedure centre, within the meaning of the Health Service Establishments Act 2006 ," ;(b) by inserting the following paragraph after paragraph (d) :(da) where the registered nurse is employed in a community mental health service approved by the Secretary and the nurse is acting in accordance with the instructions of a medical practitioner;