The ACHP has two parts:

• The Council itself -- a 20-member body of Presidential appointees, agency heads, and statutory members who collectively advise the President and Congress on historic preservation matters.
  
  
• The staff -- a professional staff with Washington and Denver offices, who carry out the day to day work of the Council including oversight of Section 106 review.

Although both the Secretary of the Interior and the Secretary of Agriculture are permanent members of the Council, the ACHP is not a part of any other Federal agency. It should not be confused with the National Park Service, which maintains the National Register of Historic Places and carries out other historic preservation functions. Nor should it be confused with the National Trust for Historic Preservation, a Congressionally chartered non-profit corporation that promotes historic preservation.

The ACHP works closely with the State and Tribal Historic Preservation Officers (SHPOs/THPOs), who play important roles in the Section 106 review process.

The ACHP's regulations, 36 CFR 800, provide direction on implementing Section 106 review. These regulations are binding on all Executive Branch and independent Federal agencies.

For detailed information on the work of the ACHP, and a variety of useful links, see www.achp.gov