Alumni may do so on a space-available basis and there is no fee for the service.

The special rate is on a space-available basis.

Senior Guests audit and attend regular credit classes on a space-available basis.

Admission to the program is through a race-neutral random magnet lottery application process, on a space-available basis.

Timetable - A listing of model railroad related events taking place around the country, submitted by readers, and published on a space-available basis.

The ceremony will be open to press coverage on a space-available basis.

You need to make arrangements to depart again within 10 days, and note that your continuation will be on a space-available basis.

That'll give you a chance for a free flight on an aircraft on a space-available basis.

This is awarded to Premier members on a space-available basis, prioritised by status, then fare class.

Admission continues to be available at any school on a space-available basis.