(a) Visiting teachers employed under Subpart 2 of Part 1 of Article 16 of Chapter 2 of Title 20 shall have the same status under the retirement system as regular classroom teachers or supervisors whose employment requires that they hold valid certificates issued by authority of the state.

(b) For service rendered after June 30, 1992, attendance officers employed in lieu of visiting teachers, if employed not less than half time, shall be members of the retirement system.