The Advisory Council on Historic Preservation strives to ensure federal agencies implement their work in harmony with the National Historic Preservation Act. Section 106 requires federal agencies to consider the effects of projects they carry out, approve, or fund on historic properties. The ACHP has published regulations that guide federal agencies and other participants in the Section 106 process.

Working with Section 106

Browse the Digital Library for a wide range of Section 106 resources, publications, and guidance. The following provide in-depth information about current issues of interest to Section 106 users.

Section 106 Regulations: 36 CFR Part 800

Citizen's Guide to Section 106 Review 

Guía del ciudadano sobre la revisión de proyectos conforme a la Sección 106

Section 106 and Infrastructure Projects 

Integrating NEPA and Section 106

Guidance on Agreement Documents

Section 106 Program Alternatives

Nationwide Programmatic Agreements

Section 106 Case Book (1966-2000)

Section 106 Applicant Toolkit

Section 106 Archaeology Guidance

Partners and Participants

The ACHP works with partners in the Section 106 process including State Historic Preservation Officers and Tribal Historic Preservation Officers. As well, Federal Preservation Officers are important components of the process. The ACHP maintains partnerships with certain federal agencies to provide dedicated support to their Section 106 program improvements

Federal Agency Program Partnerships

Contacting the ACHP About Section 106

For technical assistance about Section 106 or to reach the ACHP staff about consultations where the ACHP is participating, please contact the appropriate staff member in the Office of Federal Agency Programs using this staff list:

Office of Federal Agency Programs staff list

Electronic Submissions and Notices to the ACHP

Please submit notices of adverse effect through our Electronic Section 106 Documentation Submittal System (e106). The system allows for receipt acknowledgment and quicker turnaround times since materials are not delayed by mailing or manual processing. Attachments such as a cover letter, reports, maps, and responses or summaries of consulting party comments can and should be included. Please refrain from mailing duplicate hard copies of any materials sent via electronic mail to the e106 system or ACHP staff. Agencies are also encouraged to communicate electronically with other Section 106 stakeholders, including State and Tribal Historic Preservation Officers, and Indian tribes and Native Hawaiian organizations (NHOs), and other consulting parties consistent with their capacity and stated willingness to do so.



The Section 106 process ensures that historic preservation is considered in federal project planning.

An Introduction to Section 106

Intro to Section 106

The Section 106 review process is used to determine a federal project’s effect on historic properties. Everyone from federal preservation officers to members of the public play a role in this review.


View Active Section 106 Cases Involving the ACHP

Learn about Active Section 106 Cases with ACHP involvement in your area.

Search for a Federal Preservation Officer

Identify a specific Federal Preservation Officer.

Section 106 Digital Library

The Section 106 Digital Library contains a wealth of information about the Section 106 Process. In the library you will find:

Electronic 106 Submission System

The ACHP is pleased to announce the availability of its voluntary Electronic Section 106 Documentation Submittal System (e106) for use by any federal agency (or officially delegated non-federal entity) when notifying the ACHP of a finding of adverse effect, inviting the ACHP to be a consulting party to resolve adverse effects, or proposing to develop a Programmatic Agreement for complex or multiple undertakings.