CEQA §15183: when a project that fits the plan skips most review
CEQA Guidelines §15183 (Public Resources Code §21083.3) limits review of a project that is consistent with the density set by zoning, a community plan or a general plan for which an EIR was certified. The agency examines only effects peculiar to the project or its parcel, effects the prior EIR didn't analyze as significant, and effects new information shows will be more severe.
What §15183 asks
Section 15183 applies only when both of these are true (§15183(d)):
- The project is consistent with a community plan adopted as part of a general plan, a zoning action that set a density for the parcel, or a local general plan. "Consistent" means the project's density is the same as or less than the standard for that parcel, and it meets the plan's or zoning's density-related standards (§15183(i)(2)).
- An EIR was certified by the lead agency for that zoning action, community plan or general plan.
If it qualifies, the agency limits its look, "in an initial study or other analysis," to effects that (§15183(b)):
- are peculiar to the project or its parcel;
- were not analyzed as significant effects in the prior EIR;
- are potentially significant off-site or cumulative impacts the prior EIR didn't discuss; or
- were identified before but, on substantial new information, will be more severe than the prior EIR said.
Two rules do most of the work in practice. First, an effect is not "peculiar" if the city or county already adopted uniformly applied development policies or standards, with a finding that they will substantially mitigate that effect on future projects, unless substantial new information shows they will not (§15183(f)). The Guidelines list parking, grading, hillside, flood plain, habitat, view protection and greenhouse gas rules as examples (§15183(g)). Second, the feasible mitigation measures from the prior EIR must be imposed, and the lead agency must make a finding at a public hearing on whether they will be carried out (§15183(e); PRC §21083.3(c)).
Is §15183 an exemption?
It works like one. Courts treat §15183 as the regulation carrying out the statutory exemption in PRC §21083.3, and review an agency's use of it for substantial evidence, not under the fair argument test (Lucas v. City of Pomona (2023) 92 Cal.App.5th 508; Hilltop Group, Inc. v. County of San Diego (2024) 99 Cal.App.5th 890). Hilltop added two points that matter for applicants. A project with one peculiar effect is not knocked out of §15183 altogether: the section can exempt some aspects of a project and narrow review to the rest. And a board that rejects §15183 and orders a full EIR needs evidence for its findings; in Hilltop, a recycling facility consistent with San Diego County's 2011 General Plan update won a writ setting that decision aside.
The section names no notice of its own, and practice varies: some agencies file a Notice of Exemption citing it, others a Notice of Determination. The City of Sacramento did for The Enclave at Airport Road, a 32-home subdivision, stating that the project "is consistent with the use and density established under the existing 2040 General Plan for which the City has certified the Master EIR" (CEQAnet, SCH 2026010756, posted January 23, 2026). The §15300.2 exceptions are written for categorical exemptions; §15183 has its own screen, the four effect tests above.
A filled-in §15183 checklist (illustrative)
A made-up example to show the method: 48 apartments on a 1.2-acre lot zoned for up to 45 units an acre, in a city whose general plan has a certified program EIR. The density is 40 units an acre.
| Test | Rule | Answer for the example |
|---|---|---|
| Density consistent | §15183(i)(2) | Yes 40 units/acre against 45 allowed; height and setbacks meet zoning |
| EIR certified for the plan or zoning | §15183(d)(2) | Yes General plan program EIR, cite its SCH number |
| Peculiar effects | §15183(b)(1), (f) | Covered Rail noise 250 feet away; the city's interior noise standard was adopted with a substantial-mitigation finding, so the effect is not peculiar |
| Effects the EIR didn't analyze as significant | §15183(b)(2) | Open A former dry cleaner on the lot; the program EIR left contamination to site-by-site study. Review hazards only |
| Off-site and cumulative impacts not discussed | §15183(b)(3), (j) | None Growth on this corridor was in the EIR's buildout |
| New information, more severe effects | §15183(b)(4) | None known |
| Prior EIR mitigation imposed, finding at a hearing | §15183(e) | Do it Conditions of approval list each measure; finding at the planning commission hearing |
Result: only hazards need further review. The city examines that one topic, using a soil investigation, "in an initial study or other analysis" (§15183(b)); every other topic rests on the program EIR. That is the partial exemption Hilltop describes.
§15183 vs Class 32 vs AB 130
| §15183 (PRC §21083.3) | Class 32 infill (§15332) | AB 130 housing (PRC §21080.66) | |
|---|---|---|---|
| Kind | Streamlining that works as a statutory exemption | Categorical exemption | Statutory exemption |
| Needs a prior EIR | Yes, on the plan or zoning | No | No |
| Projects | Any project consistent with the planned density | Infill development | Housing development projects only |
| Site limits | None in the section | 5 acres or less, within city limits, substantially surrounded by urban uses | 20 acres or less (4 for builder's remedy), in a city or Census urban area, urban-use tests |
| Environmental tests | Peculiar, unanalyzed or newly worse effects only | No habitat value for listed species; no significant traffic, noise, air or water effects | Site exclusions of Gov. Code §65913.4(a)(6); no demolition of a listed historic structure; tribal consultation; Phase I |
| §15300.2 exceptions | Written for categorical exemptions | Apply | Written for categorical exemptions |
| Notice | Not named; NOE common | NOE optional (§15062) | NOE required, to LCI and the county clerk (§21080.66(f)) |
They are not exclusive: §21080.66 opens "Without limiting any other statutory or categorical exemption." A housing project that misses Class 32 or a statutory exemption by a single condition may still get narrowed review under the near-miss rule in PRC §21080.1(b) (see when no exemption fits).
§15183.3, the infill cousin
Section 15183.3 carries out PRC §21094.5. It covers infill projects in an urban area on a site that was previously developed or adjoins qualified urban uses on at least 75% of its perimeter, that meet the performance standards in Appendix M, and that fit the use, density and intensity in the region's sustainable communities strategy (§15183.3(b)). The agency documents eligibility in a written checklist (Appendix N is the sample). If no further review is needed, it files a Notice of Determination, not an exemption notice (§15183.3(d)(2)(A)).
Preparing the analysis
A §15183 checklist stands or falls on page citations to the prior EIR and on proof that each uniformly applied standard was adopted with a substantial-mitigation finding, so the work needs someone who knows the plan's EIR: agency staff or an environmental consultant. ePlan's CEQA exemption finder is free to read and drafts a Notice of Exemption ($49 for the Word file). Its work-type list doesn't name §15183, so a plan-consistency project goes under "Something else", and it does not read your general plan EIR; treat its draft as an unsigned starting point, not the consistency analysis.
Sources
- CEQA Guidelines, 14 CCR §15183, checked against the AEP 2026 CEQA Statute and Guidelines (read November 13, 2026)
- Public Resources Code §21083.3 (read November 13, 2026)
- CEQA Guidelines, 14 CCR §15183.3 and PRC §21094.5 (read November 13, 2026)
- CEQA Guidelines, 14 CCR §15332 and PRC §21080.66 (read November 13, 2026)
- Hilltop Group, Inc. v. County of San Diego (2024) 99 Cal.App.5th 890, opinion D081124, which follows Lucas v. City of Pomona (2023) 92 Cal.App.5th 508 (read November 13, 2026)
- CEQAnet, The Enclave at Airport Road, Notice of Exemption, SCH 2026010756 (read November 13, 2026)
- ePlan pricing (read November 13, 2026)
About this guide
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