*** Attention Non-Hunters***
Though wearing fluorescent orange most notably applies to Hunters, the orange text below applies to Everyone on Pennsylvania State Game Lands, of which the Appalachian Trail passes through, many times in Pennsylvania.
Whenever orange is required, it must be worn at all times while hunting.
Generally, when orange is required, hunters must wear 250 square inches of fluorescent orange that's visible from 360 degrees on the head, chest, and back. A hat and vest satisfy this requirement.
When using a blind or enclosed tree stand during firearms deer, bear, or elk seasons, a minimum of 100 square inches of fluorescent orange material must be displayed within 15 feet of the blind or stand and visible from 360 degrees.
It is unlawful to be on state game lands from November 15 through December 15 without wearing a minimum of 250 square inches of fluorescent orange, unless engaged in lawful hunting or trapping that doesn’t require the use of orange.
Even when not required, the use of orange is strongly recommended, especially while moving.