An Act amending Titles 24 (Education) and 71 (State Government) of the Pennsylvania Consolidated Statutes, in membership, contributions and benefits, further providing for termination of annuities; in membership, credited service, classes of service, and eligibility for benefits relating to retirement for State employees and officers, further providing for mandatory and optional membership in the system and participation in the plan; and, in benefits, further providing for termination of annuities.