HARRISBURG, Pa. — A proposed policy to allow weapons in limited areas of the 14-campus Pennsylvania State System of Higher Education needs more work and won't go before the system's board later this month, officials said Thursday.

The system's executive vice chancellor, Peter Garland, said after an hour-long session to collect comments about the policy that additional time will allow officials "to craft what is necessary and in the best interests of our universities."

The draft policy would ban weapons in all buildings, at sports and similar events and at outdoor class meetings and assemblies. Guns generally would be allowed, for example, in outdoor areas and in parked cars.

Some critics, including the faculty union, said the policy was too weak and should be an outright ban, while gun rights supporters said it went too far and would endanger safety.

System Chancellor Frank Brogan said the national legal landscape was in flux, adding to the challenge of establishing a single policy.

"To say that this is an ever ongoing set of shifting-sand scenarios is probably an understatement," he said.

Under the draft, the weapons policy would not apply to police. Violators would be "directed to leave or remove the weapon immediately," and face unspecified "sanctions, discipline or other action as appropriate."