Trinidad and Tobago

Any person who became a citizen by birth under section 9(1) or a citizen by descent under section 9(2) of the former Constitution, and who has not ceased to be a citizen under that Constitution, shall continue to be a citizen under this Constitution. (Sec. 15)

Any person who became a citizen of Trinidad and Tobago by virtue of registration under the former Constitution or by virtue of an acquisition of citizenship under Part II of the Trinidad and Tobago Citizenship Act, and who has not ceased to be a citizen under any law in force in Trinidad and Tobago, shall continue to be a citizen under this Constitution. (Sec. 16)

(1) Subject to subsection (2), every person born in Trinidad and Tobago after the commencement of this Constitution shall become a citizen of Trinidad and Tobago at the date of his birth.
(2) A person shall not become a citizen of Trinidad and Tobago by virtue of subsection (1), if at the time of his birth—
(a) neither of his parents is a citizen of Trinidad and Tobago and either of them possesses such immunity from suit and legal process as is accorded to an envoy of a foreign sovereign power accredited to Trinidad and Tobago; or
(b) either of his parents is an enemy alien and the birth occurred in a place then under occupation by the enemy.
(3) A person born outside Trinidad and Tobago after the commencement of this Constitution shall become a citizen of Trinidad and Tobago at the date of his birth if at that date either of his parents is, or was, but for his parent’s death, a citizen of Trinidad and Tobago otherwise than by descent, so however that, in the case of a person employed in service under the Government or under an authority of the Government that requires him to reside outside Trinidad and Tobago for the proper discharge of his functions, this subsection shall be read as if the words “otherwise than by descent” were deleted.
(4) Any person who became a citizen by birth under section 12(1) or a citizen by descent under section 12(2) of the former Constitution and who has not ceased to be a citizen under that Constitution, shall continue to be a citizen under this Constitution.
(5) A person born outside Trinidad and Tobago after the 30th August, 1962 whose mother was a citizen of Trinidad and Tobago otherwise than by descent at the date of his birth but who did not become a citizen at that date shall be deemed to have become a citizen at that date and shall continue to be a citizen of Trinidad and Tobago under this Constitution. (Sec. 17)

Parliament may make provisions relating to citizenship including provision—
(a) for the acquisition of citizenship of Trinidad and Tobago by persons who are not or do not become citizens of Trinidad and Tobago by virtue of the provisions of this Chapter²;
(b) for depriving of his citizenship of Trinidad and Tobago any citizen of Trinidad and Tobago but only on the acquisition of citizenship of some other country in the case of a citizen by birth or descent; or
(c) for the renunciation by any person of his citizenship of Trinidad and Tobago. (Sec. 20)

(1) In this Chapter—
…
“citizen by birth” means a person—
(a) who is a citizen of Trinidad and Tobago under section 17(1); or
(b) who became a citizen of Trinidad and Tobago under section 9(1) or 12(1) of the former Constitution;
“citizen by descent” means a person—
(a) who is a citizen of Trinidad and Tobago under section 17(3) or any enactment; or
(b) who became a citizen of Trinidad and Tobago under section 9(2) or 12(2) of the former Constitution.
... (Sec. 21)