Vt. Stat. Ann. tit. 16, § 1953

A teacher who has ceased being a member upon reemployment is entitled to prior service credit upon depositing in the Pension Fund the contributions that would have been deducted from the teacher’s compensation had he or she remained a member with interest as set forth in section 1944 of this title. The teacher, in order to qualify for the prior service credit, shall also deposit in the Fund a sum equal to the contributions that would have been contributed by the State had the teacher remained a member with interest as set forth in section 1944 of this title.