Notification San Carlos Airport No Parking zones enforced 11pm to 6am at all County Airport parking lots except by permit. Airport Overnight Parking Permits will be issued to Airport Businesses as follows: Airport Aeronautical Businesses – 10 Permits Airport Non-Aeronautical Businesses – 4 permits Businesses requiring additional permits may purchase them using the parking lot kiosk. Permits are valid for up to 10 days. After 10 days vehicle must be removed for 24 hours before new permit can be issued. Validation Application Instructions Posted Date : 09/13/2023