1. Where a medical practitioner was in occupation of any dispensary residence immediately before the 5th July 1948 and exercised his entitlement under the proviso to section 19(1)( a) of the Health Services Act (Northern Ireland) 1948 [1948 c.3] to continue to occupy such residence subject to such conditions as were determined pursuant to that proviso, and was, by virtue of that entitlement, in occupation of such residence immediately before the [F1 1st October 1973], he shall be entitled to continue in occupation of such residence so long as he continues to comply with those conditions.N.I.