Conn. Gen. Stat. § 10-183rr: No credit for improperly certified teacher.

Notwithstanding the provisions of subdivision (28) of section 10-183b concerning the requirement that a teacher hold a certificate for the position in which the person is employed, any teacher who possesses a certificate or permit issued by the State Board of Education and is notified on or after December 1, 2003, by the Department of Education that such teacher is not properly certified for the position in which the teacher is employed or has been employed, such teacher shall receive no further credit in the teachers' retirement system for employment in such position until the teacher becomes properly certified for such position. The Teachers' Retirement Board shall not rescind any credited service to such teacher for such employment and shall restore any such credit to such teacher if rescinded prior to May 27, 2008.