The National Mapping and Resource Information Authority (NAMRIA) is the central mapping agency of the Philippines.
It is an attached agency to the Department of Environment and Natural Resources (DENR) as per Executive Order No. 192 (June 10, 1987) integrating the functions and powers of four government agencies - Natural Resources and Management Center (NRMC), the National Cartography Authority (NCA), the Bureau of Coast and Geodetic Survey (BCGS), and the Land Classification Teams of the then Bureau of Forest Development (transformed into a Forest Management Bureau performing staff functions) to provide the Department and the government map-making services.
BCGS was under the Department of National Defense before the reorganization in 1987. It was composed of personnel in the uniformed service -Commissioned Officers and Enlisted Personnel; which is retained until these days. It is now the Hydrography Branch of NAMRIA, mandated to conduct hydrographic and coastal surveys as well as gather physical oceanographic data to produce nautical charts and other maritime publications primarily for the safety of navigation at sea and to provide the research community valuable data. It is also giving services to delineate maritime boundaries.