20.—(1) Subject to sub-paragraph (2), where the Health Board is satisfied that a person on the contractor’s list of patients has moved and no longer resides in that contractor’s practice area, the Board must—
(a)inform that patient and the contractor that the contractor is no longer obliged to visit and treat the person;
(b)advise the patient in writing either to obtain the contractor’s agreement to the continued inclusion of the person on its list of patients or to apply for registration with another provider of essential services (or their equivalent); and
(c)inform the patient that if, after the expiry of 30 days from the date of the letter of advice mentioned in paragraph (b), the patient has not acted in accordance with the advice and informed the Board accordingly, the Health Board will remove the patient from the contractor’s list of patients.
(2) If, at the expiry of the period of 30 days referred to in sub‑paragraph (1)(c), the Health Board has not been notified of the action taken, it must remove the patient from the contractor’s list of patients and inform the patient and the contractor accordingly.