What is NOT permitted when washing vehicles or ground equipment at the airport?

Washing near fuel storage is not permitted at the airport primarily due to safety concerns. Proximity to fuel storage can pose significant risks of spills or leaks, which might lead to hazardous situations, including fires or environmental contamination. Airports have strict regulations to ensure the safety and security of all operations, and thereby restrict activities that could compromise these standards.

Washing in designated areas is allowed because these locations are set up to manage water runoff and contain any potential pollutants, ensuring compliance with environmental safety regulations. Washing outside of regular hours is typically permissible as long as it doesn't interfere with airport operations, and using non-designated chemicals is not allowed as it can introduce harmful substances into the airport environment. Following these guidelines helps maintain safety while allowing for necessary vehicle and equipment maintenance.