DENR ADMINISTRATIVE ORDER NO. 98-61, September 25, 1998
“LET’S GO GREEN” GUIDELINES ON PLANTING ALONG THE NATIONAL, PROVINCIAL AND MUNICIPAL HIGHWAYS, AND ALONG THE RIVER/STREAM BANKS
National Administrative Register September 25, 1998
Text Available at Office of the National Administrative Register (ONAR), U.P Law Complex, Diliman, Quezon City
Adopted: 25 Sept. 1998