City Ordinance No. 5169-0 of 2001- Water Resource Protection and Management Code for Davao City (Water Code)
City Ordinance No. 0310-07 of 2007- Watershed Protection, Conservation and Management Ordinance of Davao City (Watershed Code). IRR
City Ordinance No. 0298-09 of 2009- City Ordinance for the Proper Harvesting, Storage and Utilization of Rainwater (Rainwater Harvesting Code). IRR