- 01/1980 : Passport (Regulation) and Exit Permit (Amendment)
- 02/1980 : Urban Development Projects (Special Provisions)
- 03/1980 : Institute of Corporation Lawyers (Amendment)
- 04/1980 : Senkadagala Eksath Bauddha Mandalaya (Incorporation)
- 05/1980 : National Arts Council, Mahanuwara (Incorporation)
- 06/1980 : Prisons (Amendment)
- 07/1980 : National Science Council of Sri Lanka (Amendment)
- 08/1980 : Firearms (Amendment)
- 09/1980 : Bribery (Amendment)
- 10/1980 : Wages Boards (Amendment)
- 11/1980 : Co-operative Societies (Special Provisions)
- 12/1980 : Ceiling on Income and Compulsory Savings (Amendment)
- 13/1980 : Estate Duty
- 14/1980 : Licensing of Clubs (Amendment)
- 15/1980 : Motor Cars (Tax on Transfers) (Amendment)
- 17/1980 : Parliament (Powers and Privileges) (Amendment)
- 19/1980 : Sambuddha Jayanthi Chaitya Trust
- 20/1980 : State Agricultural Corporations (Amendment)
- 21/1980 : Business Undertakings (Acquisition) (Amendment)
- 22/1980 : Buddhist Temporalities (Amendment)
- 23/1980 : Foreign Loans (Amendment)
- 24/1980 : Inland Revenue (Amendment)
- 26/1980 : Food
- 27/1980 : Cosmetics, Devices and Drugs
- 28/1980 : Roman Catholic Archbishop and Bishops of Ceylon (Amendment)
- 29/1980 : Finance (Amendment)
- 30/1980 : Code of Intellectual Property (Amendment)
- 31/1980 : Voluntary Social Service Organizations (Registration and Supervision)
- 32/1980 : Foreign Employment Agency
- 33/1980 : Control of Pesticides
- 34/1980 : Mahanuwara Esala Perahera Trust
- 35/1980 : Development Councils
- 36/1980 : Local Government Service (Amendment)
- 37/1980 : Consumer Protection (Amendment)
- 38/1980 : Housing and Town Improvement (Amendment)
- 43/1980 : Greater Colombo Economic Commission (Amendment)
- 44/1980 : Registration of Electors
- 45/1980 : National Film Corporation of Sri Lanka (Amendment)
- 46/1980 : Employees’ Trust Fund
- 47/1980 : National Environmental
- 48/1980 : Sree Narayana Guru Society of Sri Lanka
- 49/1980 : Primary Courts’ Procedure (Amendment)
- 50/1980 : Penal Code (Amendment)
- 52/1980 : Code of Criminal Procedure (Amendment)
- 53/1980 : Civil Procedure Code (Amendment)
- 54/1980 : Criminal Procedure (Special Provisions) (Amendment)
- 55/1980 : Rent (Amendment)
- 56/1980 : Ceiling on Housing Property (Amendment)
- 57/1980 : Central Cultural Fund
- 58/1980 : Appropriation
- 59/1980 : Appropriation (Amendment)
- 60/1980 : Bank of Ceylon (Amendment)
- 61/1980 : People’s Bank (Amendment)
- 62/1980 : Monetary Law (Amendment)