(a) Two of the original commissioners of a county housing authority shall be designated to serve one-year terms from the date of their appointment, and three shall be designated to serve two-year terms. Subsequent commissioners are appointed for two-year terms.
(b)(1) The original commissioners of a municipal housing authority shall serve terms as follows:
(A) for an authority with five commissioners, two shall be designated to serve one-year terms and three shall be designated to serve two-year terms;
(B) for an authority with seven commissioners, three shall be designated to serve one-year terms and four shall be designated to serve two-year terms;
(C) for an authority with nine commissioners, four shall be designated to serve one-year terms and five shall be designated to serve two-year terms; and
(D) for an authority with 11 commissioners, five shall be designated to serve one-year terms and six shall be designated to serve two-year terms.
(2) Subsequent municipal housing commissioners are appointed for two-year terms.

(c) Commissioners of a regional housing authority are appointed for two-year terms.
(d) Vacancies shall be filled for the unexpired term.