27. The area specified at its commencement in a default contract as the area as respects which persons resident in it will, subject to any other terms of the contract relating to patient registration, be entitled to register with the contractor or seek acceptance by it as a temporary resident must be—
(a)in the case of a default contract with an individual medical practitioner, the area which was that practitioner’s practice area on 31st March 2004 (or on the date on which the contract is signed, if earlier) for the purposes of his or her arrangements under section 29 of the 1977 Act; or
(b)in the case of a default contract with two or more medical practitioners practising in partnership, the area which covers all of the areas which were those practitioners' practice areas on 31st March 2004 (or on the date on which the contract is signed, if earlier) for the purposes of their arrangements under section 29 of the 1977 Act.