- 0000 : Sixteenth Amendment to the Constitution
- 0000 : Fifteenth Amendment to the Constitution
- 0000 : Fourteenth Amendment to the Constitution
- 01/1988 : National Apprenticeship (Amendment)
- 02/1988 : Provincial Councils Elections
- 03/1988 : National Heritage Wilderness Areas
- 04/1988 : Ceiling on Housing Property (Special Provisions)
- 05/1988 : Road Development Authority (Special Provisions)
- 06/1988 : Turnover Tax (Amendment)
- 07/1988 : Monetary Law (Amendment)
- 08/1988 : Inland Revenue (Amendment)
- 09/1988 : Thoroughfares (Amendment)
- 10/1988 : Evidence (Amendment)
- 11/1988 : Code of Criminal Procedure (Amendment)
- 12/1988 : Code of Criminal Procedure (Amendment)
- 13/1988 : Code of Criminal Procedure (Amendment)
- 14/1988 : Pensions (Special Provisions) (Amendment)
- 15/1988 : Parliamentary Elections (Amendment)
- 16/1988 : Presidential Elections (Amendment)
- 17/1988 : Referendum (Amendment)
- 19/1988 : Sri Lanka Nurses Council
- 20/1988 : National Housing Development Authority (Amendment)
- 21/1988 : Code of Criminal Procedure (Amendment)
- 22/1988 : Prevention of Terrorism (Temporary Provisions) (Amendment)
- 24/1988 : Universities (Amendment)
- 25/1988 : Medical (Amendment)
- 26/1988 : Universities (Amendment)
- 27/1988 : Sir John Kothalawala Defence Academy (Amendment)
- 28/1988 : Public Security (Amendment)
- 29/1988 : Parliamentary Elections (Amendment)
- 30/1988 : Banking
- 31/1988 : Inland Revenue (Amendment)
- 32/1988 : Ceylon Electricity Board (Amendment)
- 33/1988 : Universities (Amendment)
- 35/1988 : Elections (Special Provisions)
- 36/1988 : Merchant Shipping (Amendment)
- 37/1988 : Provincial Councils (Payment of Salaries and Allowances)
- 38/1988 : Local Authorities (Special Provisions)
- 39/1988 : Grant of Citizenship to Stateless Persons (Special Provisions)
- 40/1988 : Betting and Gaming Levy
- 41/1988 : Urban Development Authority (Amendment)
- 42/1988 : Employees’ Provident Fund (Amendment)
- 43/1988 : Sri Lanka Rupawahini Corporation (Amendment)
- 46/1988 : Animals (Amendment)
- 47/1988 : Employees’ Trust Fund (Amendment)
- 48/1988 : Sri Lanka Broadcasting Corporation (Amendment)
- 51/1988 : Termination of Employment of Workmen (Special Provisions) (Amendment)
- 53/1988 : Institute of Policy Studies of Sri Lanka
- 54/1988 : Parliamentary Elections (Amendment)
- 55/1988 : Provincial Councils Elections (Amendment)
- 56/1988 : National Environmental (Amendment)
- 57/1988 : Multilateral Investment Guarantee Agency
- 58/1988 : Business Undertakings (Acquisition) (Repeal)
- 59/1988 : Appropriation (Amendment)
- 60/1988 : Indemnity (Amendment)
- 61/1988 : Public Trustee (Amendment)
- 62/1988 : Nursing Homes (Regulation) (Amendment)
- 63/1988 : Nursing Homes (Regulation) (Amendment)
- 64/1988 : Coast Conservation (Amendment)
- 65/1988 : Embarkation Tax (Special Provisions)
- 68/1988 : Regulation of Fertilizer
- 69/1988 : Government Analyst (Disposal of Articles)
- 70/1988 : SAARC Regional Convention on Suppression of Terrorism
- 71/1988 : Stamp Duty (Amendment)
- 72/1988 : Mediation Boards
- 73/1988 : Cultural Property
- 74/1988 : Declaration of Assets and Liabilities (Amendment)
- 76/1988 : Offences Against Public Property (Amendment)
- 77/1988 : J.R. Jayewardene Centre
- 78/1988 : Finance Companies
- 79/1988 : Civil Procedure Code (Amendment)
- 80/1988 : Ceiling on Housing Property (Amendment)
- 81/1988 : Thoroughfares (Amendment)
- 82/1988 : Air Force (Amendment)
- 83/1988 : Customs (Amendment)
- 84/1988 : Forest (Amendment)