Guidance documents lack the force and effect of law, unless expressly authorized by statute or incorporated into a contract.
The National Park Service may not cite, use, or rely on any guidance that is not posted on this website existing under
Executive Order 13891, except to establish historical facts.
The Department of the Interior has issued an Interim Final Rule (IFR) regarding issuance of guidance documents,
which may be viewed at
https://www.govinfo.gov/content/pkg/FR-2020-10-26/pdf/2020-22238.pdf
.