The California Environmental Quality Act (CEQA) was established to ensure that government agencies evaluate the potential impacts of a project on public health, safety, and the environment before granting approval. Under CEQA, projects are classified into two categories: Ministerial and Discretionary.
The Legal Standard for Discretion
The distinction between these categories is central to California land-use law. A project is Ministerial only when it involves a “check-list” application of fixed standards with no personal judgment by the official. Conversely, any project that requires an agency to exercise judgment or deliberation is Discretionary and must comply with CEQA guidelines. This process is vital as it mandates an initial environmental review and provides the public a formal opportunity to comment.
Yolo County’s Site Plan Review
Yolo County has developed an alternative “Site Plan Review” process that effectively bypasses CEQA legal requirements. Under the Site Plan Review system, the County accepts a fee from a developer, such as the $4,874.58 paid by Zipline International, Inc. for the 2,500 flight per day Nest Z Unmanned Aerial System (UAS) airport, to process a project as Ministerial, thereby exempting it from environmental review.
Despite Zipline operating since 2017 without permits and recently introducing significant night-flight light pollution, the County did not require a standard CEQA application. Instead, through the Site Plan Review, staff performed a localized environmental review and prepared a report for the Planning Commission.
Why Site Plan Review Fails the Legal Test
The actions taken by the County in the Zipline case directly contradict the definition of a “Ministerial” for the Nest Z project.
- Preparation of Reports: County staff conducted an environmental review and generated a formal report for the Planning Commission.
- Extended Deliberation: On October 9, 2025, the Planning Commission debated for 1.5 hours regarding the project’s classification.
- Judgmental Classification: The Commission eventually voted 7-0 to classify the commercial drone airport as a “small experimental agricultural and seed research facility”.
By definition, any project that requires 90 minutes of debate and the subjective interpretation of land-use categories involves agency judgment. Under CEQA, the moment an official exercises discretion or prepares a report to aid in a decision, the project is automatically designated as Discretionary.
Conclusion
The Site Plan Review process lacks a legal basis under CEQA because it attempts to categorize deliberative decisions as ministerial. This approach mirrors a broader pattern of local officials bypassing land-use laws, a concern echoed in the March 26, 2026, Grand Jury Report regarding the Esparto fireworks explosion.
It is essential that the County prioritize the health and safety of its residents over the administrative convenience of multi-billion-dollar entities. Therefore, I have filed a Whistleblower complaint with the California Attorney General and initiated a lawsuit to compel Yolo County to adhere to state environmental law. (https://moonlightadvocacy.org/yolo-county-and-zipline-international/).
Mark Baker
Yolo County
Juicy! This is the kind of story I’d like to read all the time in the V. But what is a “Nest Z Unmanned Aerial System (UAS) airport” ? Is Zipline have anything to do with ziplines? What is causing ” “significant night-flight light pollution” ? And night flights for what purpose? What is a “commercial drone airport” and what do these drones do and where do they guy, and in what way can an drone airport be classified as a “small experimental agricultural and seed research facility” ? None of this makes any sense.
And what was that RG? I like the acronym, but it spells MARA, which doesn’t quite work. And isn’t it Kevin, not Mark on HRC? I’m a bit puzzled here.
Ok finally found a location. This appears less than 4 miles from the fireworks explosion, also south of Esparto. What is going on with fake land zoning and weird businesses in this area? Is this part of Yolo County like a rural businesses laundering scam?