A person is entitled to be registered as a British citizen on an application made under this section if—
they are entitled to be registered as a British overseas territories citizen under section 17A, 17C, 17D, 17E, 17F or 17H, or
they would be entitled to be registered as a British overseas territories citizen under any of those sections but for the fact that they have already become a British overseas territories citizen under a different provision.
Subsection (1) does not apply in the case of a person—
who is or would be entitled to be registered as a British overseas territories citizen by virtue only of a connection with the Sovereign Base Areas of Akrotiri and Dhekelia, or
who has previously been a British citizen.
The Secretary of State may not register a person as a British citizen on an application under subsection (1)(a) unless the person is also registered as a British overseas territories citizen.