Who administers direct democracy mechanisms at the national level?

Electoral Commission (Interim) Act

(Passed 2006)

http://www.moj.gov.jm/sites/default/files/laws/The%20Electoral%20Commission%20%28Interim%29%20Act%20pdf.pdf

Section 4. (1) There shall be established for the purposes of thisAct, and during the continuance in force of this Act, a commission ofParliament which shall be known as the Electoral Commission of Jamaica.

Section 6. (1) The functions of the Commission shall be to…

(c) conduct: (ii) referenda;