Chapter 8: Local Road Environmental Safeguards: 234 There are ifve main project groups under DAO 30-2003 (see Table 8.2). Of particular interest is group IV, which often becomes the single most relevant group if road development projects in the LGUs are pursued according to LGU road network development plans. Such co-located projects may require a programmatic approach and a programmatic initial environmental examination. The EMP, based on that initial environmental examination, will support the application for an ECC that covers all present and future road development projects of this type that the LGU plans to undertake. The programmatic approach is also designed for projects that involve the same activity at several sites, particularly where the potential impact is likely to be insigniifcant. This is the case for all works within existing rights-of-way, which require no displacement of people or change in land use. Table 8.2 ifve main project groups under DAO 30-2003 Project Subgroup New Road Existing Road Project Group and With ECC Description Environmental but with Road Enhancement Proposal Without ECC Construction& Mitigation to Modify or Resume Operation I Single ECP in ECA I-A I-B I-C or NECA II Single NECP in ECAII-A1 II-A2 II-B II-C III Single NECP in III-AZ III-A1 NECA IV Co-located projects IV-A IV-B IV-C in ECA or NECA V Unclassiifed V-A projects ECA = environmentally critical area, ECC = environmental compliance certiifcate, ECP = environmentally critical project, NECA = non– environ- mentally critical area, NECP = non–environmentally critical project.