If you happen to see a chaotic scene at the airport tomorrow night, there’s no need to panic. It’s only a drill.

A plane crash training is scheduled to take place at the California Redwood Coast – Humboldt County Airport (AKA the Arcata-Eureka Airport in McKinleyville, just in case the other name threw you off) from 5:30 to 8 p.m., which will include emergency vehicles, mock victims, sirens and other loud noises.

Required to be conducted every three years under Federal Aviation regulations, the last drill occurred in 2015.

Read the county release below:

The Humboldt County Aviation Division will be holding a live emergency drill at the California Redwood Coast – Humboldt County Airport on Wednesday, June 13 from 5:30 pm to approximately 8 pm. Federal Aviation Regulation Part 139 requires that the airport hold a live drill once every three years, and this drill was last conducted at the airport in 2015.

During the drill, several emergency agencies and vehicles will be responding to a simulated aircraft accident on airport grounds. If you are near the airport during the drill, you may hear sirens or other loud noises associated with a typical emergency response. The drill will include real-time response, mock injuries, and challenging issues to make the drill a true training event for the participating agencies.

If you have questions, please contact the airport at 707-839-5401.