​BPA Cultural Resource Compliance for Transmission System projects covers both new construction projects and Operations and Maintenance (O&M) projects. Some examples include construction of new transmission lines and substations; rebuilding and/or re-conductoring existing transmission lines; and replacing transmission line structures, access road construction or improvement, and other activities. Environmental compliance leads within the BPA Environmental Planning and Analysis group, and the Pollution Prevention and Abatement group, coordinate with cultural resources staff to accomplish cultural resource compliance for new construction and O&M hydropower.