Cal. Codes » Public Resources Code / DIVISION 13. ENVIRONMENTAL QUALITY / CHAPTER 2.5. Definitions
California Codes

Cal. Public Resources Code § 21068 (2026)

Definitions — Environmental Quality

✓ current as of May 2026
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“Significant effect on the environment” means a substantial, or potentially substantial, adverse change in the environment.

Notes of Decisions
Cited in 4 cases (2 in the last 5 years), 1982–2022 · leading case: Lewis v. Seventeenth Dist. Agric. Ass'n, 165 Cal. App. 3d 823 (Cal. Ct. App. 1985).
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Lewis v. Seventeenth Dist. Agric. Ass'n, 165 Cal. App. 3d 823 (Cal. Ct. App. 1985). · cites it 2× “" Public Resources Code section 21068 provides, "`[s]ignificant effect on the environment' means a substantial, or potentially substantial, adverse change in the environment.”
Markley v. City Council, 131 Cal. App. 3d 656 (Cal. Ct. App. 1982). “” This code section requires findings regarding only significant environmental effects identified in the EIR.”
Ocean Street Extension etc. v. City of Santa Cruz CA4/1 (Cal. Ct. App. 2021). “Public Resources Code section 21068 defines “significant effect on the environment” as “a substantial, or potentially substantial, adverse change in the environment.”
Ocean Street Extension Neighborhood etc. v. City of Santa Cruz (Cal. Ct. App. 2022). “Public Resources Code section 21068 defines “significant effect on the environment” as “a substantial, or potentially substantial, adverse change in the environment.”
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