Waters Act 1920 (Cap 146) (1989)
Ministerial Functions Act (1969 (Perintah Menteri-menteri Kerajaan Persekutuan 1990) :

    DID role in river management in on flood mitigation and river conservancy
Environmental Quality Act 1974 : (1985)
Environmental Quality Regulations (Prescribed premises, Sewerage and Industrial

    Effluent) : Crude Palm-oil (1977), Raw Natural Rubber (1978), Sewerage and Industrial

    Effluent (1979), etc.
Environmental Quality Order 1987 (Environmental Impact Assessment - Prescribed

    Activities)
National Forestry Act 1984 (Forestry Rules 1986)
Mining Enactment 1936 (F.M.S. Cap 147)
Fisheries Act 1963 (1985)/ Inland Fisheries Act