A phrase, when used with an altitude assignment, indicating ATC has
offered the pilot the option of starting a climb or decent whenever
the pilot desires, and they may climb or descend at any rate they
"We hope to be in operation by late 2009 or early
Source: Randy Curtis, executive director of
Florida's Panama City-Bay County International Airport. The airport
will move to a new, much larger facility by 2010. It will be the
first such airfield built in the US in 10 years.