Amends Chapter III of the Charter of the City of Trinity, as enacted by SL 1997-44, as the title indicates. Changes the number of members of the City Council to five (was, eight). Provides for one member (was, two) elected by the qualified voters of the entire city from each of the four wards of the city, and an additional member who resides in the city elected at large. Elects members of the Council to two-year (was four-year) terms. Beginning in 2017 and biennially thereafter, provides that the Mayor is to be selected by the qualified voters of the city for a two-year (was, four-year) term. Prohibits electing members from any ward in the 2015 election; however, provides that in the 2015 election, the member to be elected at-large by all the qualified voters of Trinity, as established in this act, is to be elected.

Applies to elections held on or after that date and to vacancies occurring on or after that date.