1B British citizens overseas: entitlement to be registered 

(1) A person is entitled to be registered in a register of parliamentary electorsin pursuance of a declaration made by the person under and in accordancewith section 1C (an “overseas elector’s declaration”) if the following twoconditions are satisfied.
(2) The first condition is that the register is for the constituency or part of theconstituency within which is situated the place of the address specified in thedeclaration by virtue of—

(a) section 1C(2)(a) (where the person is seeking to be registered inreliance on the previous registration condition), or
(b) section 1C(3)(a) or (4) (where the person is seeking to be registeredin reliance on the previous residence condition).

(3) The second condition is that the registration officer concerned is satisfied that,on the date on which the person makes the declaration, the person qualifies asan overseas elector in respect of the constituency.
(4) Where—

(a) a person applies to be registered in a register of parliamentary electorsin reliance on the previous residence condition, and
(b) the registration officer concerned considers that insufficient evidenceis available for the purpose of determining whether the person has atany time been included in any electoral register (within the meaningof section 1A),
the officer may disregard section 1A(3)(c) in determining whether the personsatisfies the previous residence condition.

(5) An overseas elector’s declaration made by a person is of no effect unlessreceived by the registration officer concerned within the period of 3 monthsbeginning with the date on which the person makes the declaration.
(6) For the purposes of section 1A, where a person is registered in a registerof parliamentary electors for a constituency or part of a constituency inpursuance of an overseas elector’s declaration, it is to be conclusivelypresumed that the person was not resident in the United Kingdom on the dateon which the person made the declaration.
(7) See also sections 10ZC and 10A of the principal Act, which (among otherthings) contain provision about the making of applications for registration.