Parliamentary Acts
- National Policies of Government of Malaysia - Third National Agricultural Policy (1998 - 2010)
- Federal Constitutions
- Ministerial Functions Act (1969) (Perintah Menteri-Menteri Persekutuan 2004) : DID Role In River Management In On Flood Mitigation and River Conservancy
- Other Legislations
Land Acts
- National Land Code 1965 And Waters
- Land Conservation Act 1960
Flood Mitigation
- Drainage Works Act 1954 (1988)
- Local Government Act (1976): (Peninsular)
- Earthworks Bylaws
- Street, Drainage and Building Act 1974 (1994)
- Town and Country Planning Act 1976
River Management
- Waters Act 1920 (Act 418) & Water Supply (Federal Territory of Kuala Lumpur) Act 1998 (Act 581)
- Mining Enactment 1962 (F.M.S. Cap 147)
- Environmental Quality Act 1974 (Act 127) & Subsidiary Legislation
- Ministerial Functions Act 1969 (Act 2)
- National Forestry Act 1984 (Act 313) & Wood-Based Industries (State Legislatures Competency) Act 1984 (Act 314)
- Fisheries Act 1985 (Act 317) and Regulations
- Water Act 1989 - Chapter 15
- Sewerage Services Act 1993 (Act 508) & Regulations And Orders
Coastal Management
- Town and Country Planning Act 1976
- Environmental Quality Act 1974: (1985)
- Environmental Quality Order 1987 (Environmental Impact Assessment - Prescribed Activities)
- Mining Enactment 1936 (F.M.S. Cap 147)
- Fisheries Act 1963 (1985) / Inland Fisheries Act
Hydrological & Water Resources
- Drainage Works Act 1954 (1988)
- Waters Act 1920 (Cap 146) (1989)
Urban Stormwater
- Street, Drainage and Building 1974 (Act 133) - Section 70A(9)
- Street, Drainage and Building 1974 (Act 133) - Section 71
Agriculture Drainage
- Third National Agricultural Policy (1998-2010)
- Irrigation Areas Act 1953 (1989)
- Drainage Works Act 1954 (1988)
- Waters Act 1920 (Cap 146) (1989)
- Fisheries Act 1963 (1985) / Inland Fisheries Act