Notice from the Central Bank
The Act No. 22 of 2019 (to amend the Proceeds of Crime Act, Chap. 11:27 and the Central Bank Act, Chap 79:02) provides for $100 notes to be exchanged for polymer notes by the Central Bank for a period of three (3) months after the deadline of December 31, 2019, for replacing the current notes; the owner of the notes must give sufficient reason for his/her inability to exchange the notes by the deadline.
The Minister of Finance may also further extend the date in any case that he considers appropriate to do so.
Source: The Central Bank of Trinidad and Tobago