The Superannuation (Local Government and National and Local Government Officers Association) Interchange Rules 1969
These Rules provide for the aggregation of service and for a single superannuation award in cases where persons transfer within the prescribed period (generally 12 months) from pensionable employment with a local authority in England or Wales to employment entailing membership of the Staff Superannuation Fund of the National and Local Government Officers Association, and vice versa. Where such a transfer is made the person is enabled, subject to the payment of an appropriate transfer value, to reckon previous service at its actual length for pension under the superannuation scheme to which he transfers.