Daily usage fees are due by all visiting aircraft pilots who have not opted for the yearly rate. Payment is under the principle of the spontaneous honor-system (see below decree instituting fees).
Visiting aircraft pilots are requested to register and pay their fees using the envelopes available outside ACIS front office (see blue sign below).
HOURS OF OPERATION
The airfield is accessible all year long except when closed for installation maintenance and other events demanding closure. Users are notified concerning closures by NOTAM.
During the soaring season, ACIS (Aéroclub International Sisteron) front office is open at hours which will vary according to soaring activity.
All through the year, however, voice-mail, e-mail, and postal mail will be read on a regular basis.