Glossary

Mitigated Negative Declaration (MND)

Also known as: MND, Negative Declaration, MND

A CEQA determination, issued after an initial study, that a project would have a significant environmental effect but that all such effects can be reduced to a less-than-significant level through specific, enforceable mitigation measures the applicant agrees to implement — allowing the project to avoid preparing a full environmental impact report.

The MND pathway sits between a categorical exemption, where no significant impact analysis is required at all, and a full EIR, required when at least one impact cannot be adequately mitigated, and its availability turns entirely on whether every potentially significant impact identified in the initial study can be tied to a specific, feasible, and enforceable mitigation measure — vague or aspirational mitigation commitments are a common basis for a successful legal challenge to an MND, since CEQA requires mitigation measures to be specific and enforceable, not merely a promise of good intentions. Because an MND is dramatically faster and less expensive to prepare and defend than a full EIR, often compressing environmental review from well over a year to a matter of months, sponsors and their environmental consultants frequently structure a project's design specifically to qualify for MND treatment, incorporating mitigation measures proactively into the project description from the outset rather than waiting for the initial study to identify problems and then scrambling to mitigate them. An MND remains subject to legal challenge like any CEQA determination, and a court that finds substantial evidence supports a fair argument of a potentially significant, unmitigated impact will overturn the MND and require the agency to prepare a full EIR instead, so the MND route carries meaningfully more legal risk than a categorical exemption even though it involves more upfront environmental analysis.