Several web sites indicate that free range means the chickens have to have access to outside of the coop, at least part of the day. A fence can still be utilized.
Wikipedia: "A behavioral definition of free range is perhaps the most useful: "chickens kept with a fence that restricts their movements very little." This has practical implications. For example, according to Jull, "The most effective measure of preventing cannibalism seems to be to give the birds good grass range." De-beaking was invented to prevent cannibalism for birds not on free range, and the need for de-beaking can be seen as a litmus test for whether the chickens' environment is sufficiently "free-range-like."
So, free range means the chickens still have their beaks.