Providing that only individuals serving as Governor on or before January 18, 2011, are eligible for a defined benefit retirement allowance; providing that, on or after July 1, 2010, specified individuals are not eligible to join the Employees' Pension System, the Teachers' Pension System, the State Police Retirement System, the Correctional Officers' Retirement System, the Law Enforcement Officers' Pension System, or the Judges' Retirement System; etc.