This instrument establishes land-use planning and zoning principles to promote development that simultaneously protects and conserves the environment. By July 2012, SEMARNAT had supported the development of 85 ELUPs at different geographic scales, of which 43 were decreed in the last six years. Further efforts are needed to ensure that the regions with the highest development potential for tourism, industry, agriculture, aquaculture and fisheries are covered by ELUPs.