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 

Citizen's Guide (Spanish)

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.

For technical assistance about Section 106 or staff contact information:

Office of Federal Agency Programs staff list

Federal Agency Program Partnerships

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.