Paragraph 3
Subject to sub-paragraph (5) below, a person is qualified for registration under section 1 of this Act by residence and parentage if he has been ordinarily resident in the United Kingdom and Colonies throughout the period of three years ending with the date of his application and he has the qualifications mentioned in sub-paragraph (2), (3) or (4) of this paragraph.
A person born before the commencement of the principal Act has the said qualifications if—
his mother was a British subject at the time when he was born or a person who, by virtue of section 14 of that Act, is deemed (or would but for her death be deemed) to have been a British subject immediately before the commencement of that Act; or
his father or mother was a person who, by virtue of section 15 or 17 of that Act, is deemed (or would but for his or her death be deemed) to have been a British subject immediately before the commencement of that Act;
and, in either case, the relevant parent remained (or would but for his or her death have remained) a British subject without citizenship as from the commencement of that Act.
A person born before the commencement of the principal Act has the said qualifications if—
his father or mother has become a British subject without citizenship by virtue of section 16(2) of that Act; or
his mother was a British subject at the time when he was born and remained a British subject by virtue of a notice under section 2(1) of that Act.
A person born after the commencement of the principal Act has the said qualifications if his father or mother—
was a British subject without citizenship at the time when that person was born; or
has subsequently become a British subject without citizenship by virtue of section 16(2) of that Act; or
was a British subject at the time when that person was born by virtue of a notice under section 2(1) of that Act (whether given before or after that time).
A person shall not be treated as qualified for registration under section 1 of this Act by virtue of sub-paragraph (2) or (3)(a) above if the relevant parent has become (or would but for his death have become) a citizen of any country mentioned in section 1(3) of the principal Act of which he was (or would but for his death have been) potentially a citizen at the commencement of that Act.
For the purposes of this paragraph residence in a protectorate shall be treated as residence in the United Kingdom and Colonies, and references to a colony or a protectorate shall be construed as references to any territory which is a colony or protectorate at the time of the application.