The majority (98%) of the projects submitted for review by HPD are for compliance with Section 106 of the National Historic Preservation Act of 1966 , as amended (36 CFR Part 800). Section 106 requires federal agencies (and their applicants) to take into account the effects of their undertakings on historic properties (both structural and archaeological). The Section 106 review process must be completed prior to approval of the expenditure of federal funds for the project, or prior to the issuance of any federal license or permit. As part of this process, federal agencies, or their applicants, are required to consult with the State Historic Preservation Office (SHPO), which in Georgia is the Historic Preservation Division (HPD) of the Department of Natural Resources.
Environmental Review Program video  -- contains more information regarding Environmental Review and Section 106.
Working with Section 106 : detailed information about the 106 process
Section 106 regulations (36 CFR Part 800) 
Citizen’s Guide to Section 106 Review : how citizens can be involved in Section 106
Jennifer Dixon, Environmental Review & Preservation Planning program manager
email@example.com , 770-389-7851
Meg Richardson, Environmental Review Historian, HUD and FCC projects
firstname.lastname@example.org , 770-389-7852
Barbara Fisher, Environmental Review Historian, GDOT/FHwA projects
email@example.com , 770-389-7854
Katie Twomey, Environmental Review Historian, GDOT/Transportation Enhancements projects
firstname.lastname@example.org , 770-389-7855