old scheme "old scheme" means the appropriate scheme pertaining to the salaries and terms and conditions of service which is applicable to officers of the public service and employees of statutory and local authorities to whom the revision of salaries and terms and conditions of service made by the Federal Government with effect from l January 1976, or any other subsequent revision of salaries, or the terms and conditions of service, or both made by the Federal Government from time to time, is not applicable; ACT 238 - PENSIONS ADJUSTMENT ACT 1980 2. Interpretation.