Tribal Consultation: What California Requires

AB 52 (2014, Stats. 2014, ch. 532) added tribal cultural resources to CEQA and created a consultation process at Public Resources Code 21080.3.1 and following. It applies to any project for which a notice of preparation, notice of negative declaration, or notice of mitigated negative declaration is filed on or after July 1, 2015.

One naming caution, because it causes real confusion. A different AB 52 moved through the 2025 to 2026 session. It began as a Native American Heritage Commission bill and at one point proposed amendments to the same statutes described on this page, then was amended into a farmer equity bill with no cultural resources content. Always write AB 52 (2014) or cite Stats. 2014, ch. 532, and check the version date on anything you read that says “AB 52” without a year.

Four clocks, and the first one is widely reported wrong.

• A tribe must have already asked. The lead agency’s notice duty runs only to tribes that have previously submitted a written request to that agency to be notified of projects in their traditionally and culturally affiliated area (Public Resources Code 21080.3.1(b)(1)). No standing request means no notice duty to that tribe.
• 14 days for the lead agency to notify. Within 14 days of determining an application is complete, or of deciding to undertake a project, the lead agency provides formal written notification (21080.3.1(d)). It is 14 days, not 30. A great deal of published material says 30, and it is wrong.
• 30 days for the tribe to request consultation, running from receipt of the formal notification (21080.3.1(b)(2)).
• 30 days for the agency to begin consultation after receiving the request (21080.3.1(e)).

Consultation must conclude before the environmental document is released.

Yes. Public Resources Code 21073 defines “California Native American tribe” as a tribe located in California that is on the contact list maintained by the Native American Heritage Commission for purposes of SB 18. That list includes tribes without federal recognition. A project team that screens for federal recognition will miss tribes with full AB 52 rights, and that is one of the more consequential errors on this subject.

Consultation concludes under Public Resources Code 21080.3.2(b) when either the parties agree to measures to mitigate or avoid a significant effect on a tribal cultural resource, or a party, acting in good faith and after reasonable effort, concludes that mutual agreement cannot be reached.

There is no clock on conclusion and no unilateral off-ramp for the agency. This is the single largest schedule risk on any California project that needs an EIR or a mitigated negative declaration, because the front-end clocks are all short and the back end is open-ended.

*Koi Nation of Northern California v. City of Clearlake*, decided by the First District Court of Appeal, Division Two, on March 14, 2025 in consolidated appeals, is the first published decision on AB 52, and it made the consultation record enforceable in a way agencies had not been treating it.

The holdings that change practice:

• Consultation has to be substantive. General coordination plus an archaeological survey does not satisfy AB 52.
• An agency cannot declare consultation concluded without showing good-faith engagement toward one of the two statutory endpoints. Clearlake’s failure to respond to tribal input, share survey results, or document its reasons for rejecting proposed mitigation, including on-site monitoring during ground disturbance, violated the statute.
• Procedural compliance is reviewed de novo, and a procedural failure that omits material information is prejudicial regardless of whether the outcome would have changed.
• The consultation record has to appear in the environmental document. A tribe raising concerns through other channels does not cure the omission.
• Confidential material goes in a sealed appendix. It does not get left out.

The court vacated the mitigated negative declaration and the project approvals and ordered consultation to restart. Projects are now losing on the documentation of consultation more than on the consultation itself.

Different statute, different trigger, different clocks. SB 18 (2004) sits in the Planning and Zoning Law at Government Code 65352.3 and applies to the adoption or amendment of a general plan or specific plan, and to certain open-space designations. It is a planning action requirement, not a project requirement.

The 90 days under SB 18 is the tribe’s window to request consultation from the date it is contacted (Government Code 65352.3(a)(2)). It is not a deadline on the Native American Heritage Commission, and material describing a “90-day NAHC referral process” has this backwards.

A general plan amendment that also needs an EIR triggers both statutes, so pages describing AB 52 as having replaced SB 18 have it wrong.

They are separate obligations under separate laws, and satisfying one does not satisfy the other. Section 106 tribal consultation is a federal agency’s duty under 36 CFR 800.2(c)(2), and it recognizes the government-to-government relationship between the United States and federally recognized tribes. It reaches tribes that attach religious and cultural significance to properties, including properties off tribal lands, and it requires the agency to make a reasonable and good faith effort to identify those tribes early.

Three differences that matter operationally. Government-to-government consultation under Section 106 runs to federally recognized tribes and Native Hawaiian organizations, and a tribe without federal recognition participates instead as a consulting party under 36 CFR 800.2(c)(5), on the agency’s invitation, which is a weaker footing than the entitlement AB 52 gives every tribe on the NAHC contact list. On tribal lands, the Tribal Historic Preservation Officer takes the SHPO’s role for Section 106 purposes. And a federal project in California with a state or local discretionary approval owes both processes, which is where sequencing pays off. The same site visit, the same records search, and often the same meeting can serve both if it is planned that way from the start.

AB 130 built a consultation process for the infill housing exemption that sits entirely outside AB 52, with its own deadlines and its own definition of a tribal cultural resource. Public Resources Code 21080.66(b) sets it out:

• 14 days from the application being deemed complete for the local government to notify tribes by certified mail and email, with project information, site maps, known cultural resource studies, and notice that tribes have 60 days to request consultation.
• 60 days for the tribe to accept the invitation to consult. Non-response concludes the consultation.
• 14 days from acceptance for the local government to initiate consultation.
• 45 days from initiation to conclude, with a one-time 15-day extension at the tribe’s request.
• Then 30 days for the local government to approve or deny, running from the later of the conclusion of consultation or the consistency determination.

The maximum consultation path is 148 days before the approval clock starts.

Two more differences worth knowing. The definition of tribal cultural resource at 21080.66(b)(5)(C) is broader than the AB 52 definition at Public Resources Code 21074, because it expressly includes sacred places identified by the Native American Heritage Commission and resources in a local tribal register. There are now two operative definitions of a tribal cultural resource in CEQA depending on which track a project is on, and they are not interchangeable. And the project applicant may participate in consultation only if the tribe expressly agrees.

One drafting note for anyone reading the statute. Section 21080.66(b)(4)(B)(iii) requires culturally appropriate treatment “consistent with Section 21083.9.” Public Resources Code 21083.9 is the CEQA scoping meeting statute and says nothing about tribes or culturally appropriate treatment. The provision that addresses this is Public Resources Code 21084.3(b)(2). The cross-reference appears to be an error in AB 130 that has not been corrected as of August 2026. The substantive requirement is real regardless.

Yes, and the protection is strong. Public Resources Code 21082.3(c) provides that information submitted by a tribe during AB 52 consultation may not be disclosed without the tribe’s prior written consent. Where such information is published in an environmental document it goes in a confidential appendix. Agency-to-agency exchange for the purpose of the consultation is permitted.

SB 18 has a parallel requirement at Government Code 65352.3(b) covering the specific identity, location, character, and use of cultural places. Records of Native American graves, cemeteries, and sacred places are separately exempt from the California Public Records Act under Government Code 7927.000, which is the recodification of the former section 6254.10. A great deal of published material, and some agency guidance, still cites 6254.10, which was repealed when the Public Records Act was reorganized effective January 1, 2023.

The *Koi Nation* court was explicit that confidentiality is handled through sealed appendices rather than by leaving material out of the record.