| 01/1998 : Pilisarana Institute (Incorporation) |
| 02/1998 : Sri Lanka Institute Of Interior Designers (Incorporation) |
| 03/1998 : Ampara Senanayake Gunanusmarana Sabhawa (Incorporation) |
| 04/1998 : Richmond College Old Boys Association (Incorporation) |
| 05/1998 : Motor Traffic (Amendment) |
| 06/1998 : Monetary Law (Amendment) |
| 07/1998 : State Printing Corporation (Amendment) |
| 08/1998 : Voluntary Social Service Organisations (Registration and Supervision) (Amendment) |
| 09/1998 : Rubber Replanting Subsidy (Amendment) |
| 10/1998 : Sports Law (Amendment) |
| 11/1998 : Goods and Services Tax (Amendment) |
| 12/1998 : Shrama Vasana Fund |
| 13/1998 : Herath Foundation (Incorporation) |
| 14/1998 : Old Anandians 75-80 Group (Incorporation) |
| 15/1998 : Institute of Chartered Accountants (Amendment) |
| 16/1998 : Pelpola Vipassi Foundation (Incorporation) |
| 17/1998 : National Security Levy (Amendment) |
| 18/1998 : Factories (Amendment) |
| 19/1998 : Young Men’s Buddhist Association, Maharagama (Incorporation) |
| 20/1998 : Prohibition of Ragging and Other forms of violence in Educational Institutions |
| 21/1998 : Registration of Title |
| 22/1998 : Finance (Amendment) |
| 23/1998 : Rajapakse Memorial, Educational, Cultural And Social Services Foundation (Incorporation) |
| 24/1998 : Antiquities (Amendment) |
| 25/1998 : Colombo Buddhist Theosophical Society (Incorporation) |
| 26/1998 : The Sri Lanka Historical Association (Incorporation) |
| 27/1998 : Judicature(Amendment) |
| 28/1998 : Code of Criminal Procedure(Amendment) |
| 29/1998 : Penal Code(Amendment) |
| 30/1998 : Centre For Islamic Guidance (Incorporation) |
| 31/1998 : Vijaya Kumaratunga Memorial Foundation |
| 32/1998 : Salihiya Thaikka (Incorporation) |
| 33/1998 : Evidence(Amendment) |
| 34/1998 : Kolping Society Of Sri Lanka (Incorporation) |
| 35/1998 : Lions Clubs International District 306a-Youth Education, Rehabilitation And Employment Trust (Incorporation) (Amendment) |
| 36/1998 : T. B Ilangaratne Sahurda Sansadaya (Incorporation) |
| 37/1998 : Brahma Kumaris Rajayoga Centre, Sri Lanka (Incorporation) |
| 38/1998 : Civil Procedure Code (Amendment) |
| 39/1998 : Sri Lanka Society For Numismatic Studies (Incorporation) |
| 40/1998 : Medical(Amendment) |
| 41/1998 : Batticaloa Young Men’s Hindu Association (Incorporation) |
| 42/1998 : Immigrants and Emigrants (Amendment) |
| 43/1998 : Church Of Ceylon (Incorporation) |
| 44/1998 : Jathika Urumaya Organisation (Incorporation) |
| 45/1998 : Regulation of Private Security Agencies |
| 46/1998 : Turnover Tax (Amendment) |
| 47/1998 : Tax and Foreign Exchange Amnesty |
| 48/1998 : All Ceylon Union Of Muslim League Youth Fronts (Incorporation) |
| 49/1998 : Sri Sarananda Foundation (Incorporation) |
| 50/1998 : National Child Protection Authority |
| 51/1998 : National Library and Documentation Services Board |
| 52/1998 : Inland Revenue (Amendment) |
| 53/1998 : National Aquaculture Development Authority of Sri Lanka |
| 54/1998 : Maintenance Claims (Reciprocal Enforcement) |
| 55/1998 : Institute Of Mass Communication (Incorporation) |
| 56/1998 : Widowers and Orphans Pension (Amendment) |
| 57/1998 : Widows’ and Orphans’ Pension Fund (Amendment) |
| 58/1998 : Registration of Deaths (Temporary Provisions) |
| 59/1998 : National Institute of Technical Education of Sri Lanka (Amendment) |
| 60/1998 : Widowers’ and Orphans’ Pension Scheme (Armed Forces) |
| 61/1998 : Appropriation |
| 62/1998 : Sigiriya Heritage Foundation |
| 63/1998 : Appropriation (Amendment) |
| 64/1998 : Widows’ and Orphans’ Pension Fund(Amendment) |
| 65/1998 : Widowers’ and Orphans’ Pension (Amendment) |
