A. Notwithstanding the provisions of §§ 15.2-837, 15.2-855, 15.2-2212, 15.2-5113, 15.2-5703 and 36-11, the board may establish different terms of office for initial and subsequent appointments of (i) the commissioners of any county redevelopment and housing authority created pursuant to the Housing Authorities Law (§§ 36-1 through 36-55.6), (ii) the members of any county authority created pursuant to the Park Authorities Act (§ 15.2-5700 et seq.), (iii) the members of the county planning commission, (iv) the members of the county school board, (v) any commissions created pursuant to § 15.2-823 and (vi) the members of any county water or sewer authority created pursuant to § 15.2-5102. Such different terms of office for such authorities, boards and commissions shall be for fixed terms, and such different terms of office may include, but are not limited to, terms of either two or four years and terms that extend until July 1 of the year following the year in which there is a regular election provided by general law for the election of supervisors. If the board establishes different terms of office pursuant to this section, such new terms shall affect future appointments to such offices and shall not affect the existing terms of any commissioner or member then serving in office. This section shall not affect the removal of any member of an authority, board or commission for incompetency, neglect of duty or misuse of office pursuant to provisions of general law.