http://www.legislation.gov.uk/uksi/1981/73/madeThe Social Security (Unemployment Benefit) (Abatement for Occupational Pension Payments) Regulations 1981enKing's Printer of Acts of Parliament1981-01-30 The Social Security (Unemployment Benefit) (Abatement for Occupational Pension Payments) Regulations 1981InstrumentThe Social Security (Unemployment, Sickness and Invalidity Benefit) Regulations 1983