On 1 October 1999 a system of mobility of superannuation entitlements came into effect for employees who have transferred or will transfer employment between the NSW State public sector, local government sector, and electricity distribution sector.

Employer and employee associations in the local government and electricity distribution sectors established by Trust Deed the Local Government Superannuation Scheme (LGSS) and Energy Industries Superannuation Scheme (EISS) respectively in mid-1997.

Employees who were transferred from the public sector superannuation schemes to LGSS or EISS in the period from 1 July 1997 until 1 October 1999 had not been able to recommence their membership entitlements in the State public sector defined benefit superannuation schemes (SSS, SASS, SANCS) upon securing new employment with a public sector employer.

Such employees only had the option of deferring accrued benefits in LGSS or EISS, and entering the First State Superannuation Scheme or another accumulation-style scheme as applicable schemes for new employees in the public sector.

By contrast, the arrangements that took effect on 1 October 1999 allowed for mobility of accrued benefits and contributory rights between LGSS, EISS and the State public sector schemes for any employees who have or will transfer employment directly between the three employment sectors.