Just wanted to let everyone know that Britain has the same kind of wording in their nationality act as a reference. I put in BOLD in the text refer to fulfilling Section 1 and "intention".
Britain doesn't go around revoking Britons of their citizenship simply because they left Britain and settled elsewhere. I happen to know a few Britons living in Canada and US and none of them has ever lost their citizenship because of staying permanently outside Britain.
http://www.legislation.gov.uk/ukpga/1981/61
British Nationality Act 1981
6 Acquisition by naturalisation.
(1)If, on an application for naturalisation as a British citizen made by a person of full age and capacity, the Secretary of State is satisfied that the applicant fulfils the requirements of Schedule 1 for naturalisation as such a citizen under this subsection, he may, if he thinks fit, grant to him a certificate of naturalisation as such a citizen.
(2)If, on an application for naturalisation as a British citizen made by a person of full age and capacity who on the date of the application is married to a British citizen, or is the civil partner of a British citizen the Secretary of State is satisfied that the applicant fulfils the requirements of Schedule 1 for naturalisation as such a citizen under this subsection, he may, if he thinks fit, grant to him a certificate of naturalisation as such a citizen.
18 Acquisition by naturalisation.
(1)If, on an application for naturalisation as a British overseas territories citizen made by a person of full age and capacity, the Secretary of State is satisfied that the applicant fulfils the requirements of Schedule 1 for naturalisation as such a citizen under this subsection, he may, if he thinks fit, grant to him a certificate of naturalisation as such a citizen.
(2)If, on an application for naturalisation as a British overseas territories citizen made by a person of full age and capacity who on the date of the application is married to such a citizen, or is the civil partner of such a citizen the Secretary of State is satisfied that the applicant fulfils the requirements of Schedule 1 for naturalisation as such a citizen under this subsection, he may, if he thinks fit, grant to him a certificate of naturalisation as such a citizen.
(3)Every application under this section shall specify the British overseas territory which is to be treated as the relevant territory for the purposes of that application; and, in relation to any such application, references in Schedule 1 to the relevant territory shall be construed accordingly.
SCHEDULE 1
REQUIREMENTS FOR NATURALISATION
C82Sch. 1 modified (7.11.2002, partly retrospective) by Nationality, Immigration and Asylum Act 2002 (c. 41), s. 11
Naturalisation as a British citizen under section 6(1)
1(1)Subject to paragraph 2, the requirements for naturalisation as a British citizen under section 6(1) are, in the case of any person who applies for it—
(a)the requirements specified in sub-paragraph (2) of this paragraph, or the alternative requirement specified in sub-paragraph (3) of this paragraph; and
(b)that he is of good character; and
(c)that he has a sufficient knowledge of the English, Welsh or Scottish Gaelic language; and
(ca)that he has sufficient knowledge about life in the United Kingdom; and
(d)that either—
(i)his intentions are such that, in the event of a certificate of naturalisation as a British citizen being granted to him, his home or (if he has more than one) his principal home will be in the United Kingdom; or
(ii)he intends, in the event of such a certificate being granted to him, to enter into, or continue in, Crown service under the government of the United Kingdom, or service under an international organisation of which the United Kingdom or Her Majesty's government therein is a member, or service in the employment of a company or association established in the United Kingdom.
(2)The requirements referred to in sub-paragraph (1)(a) of this paragraph are—
(a)that the applicant was in the United Kingdom at the beginning of the period of five years ending with the date of the application, and that the number of days on which he was absent from the United Kingdom in that period does not exceed 450; and
(b)that the number of days on which he was absent from the United Kingdom in the period of twelve months so ending does not exceed 90; and
(c)that he was not at any time in the period of twelve months so ending subject under the immigration laws to any restriction on the period for which he might remain in the United Kingdom; and
(d)that he was not at any time in the period of five years so ending in the United Kingdom in breach of the immigration laws.
(3)The alternative requirement referred to in sub-paragraph (1)(a) of this paragraph is that on the date of the application he is serving outside the United Kingdom in Crown service under the government of the United Kingdom.