Developments in American Archaeology: Fifty Years of the National Historic Preservation Act

Since its enactment over five decades ago, the National Historic Preservation Act (NHPA) and the organizations, policies, and regulations implementing it have strongly influenced how archaeology is conducted in the United States. The NHPA created a national network of archaeologists in government agencies. This network reviews the possible impact on important archaeological resources of tens of thousands of public projects planned each year. These reviews often include investigations, of which there have been millions. The archaeological profession has shifted from one oriented mainly on academic research and teaching to one focused on field investigations, planning, resource management, public outreach, and resource protection, bundled under the term cultural resource management (CRM). Since 1966, growth has produced good outcomes as well as some troubling developments. Current and new challenges include avoiding lock-step, overly bureaucratic procedures and finding the financial, professional, and technical resources, as well as political support, to build on the achievements so far.