Purple Paint on Trees in PA Means No Trespassing

In Pennsylvania, a vertical purple stripe painted on a tree or fence post is a legal “No Trespassing” notice. Purple paint on trees in PA carries the same weight as a posted sign under the state’s criminal trespass statute, and anyone who walks past a properly applied mark can be charged with defiant trespass.1Pennsylvania Game Commission. Purple Paint Law

What the Purple Paint Legally Means

Governor Tom Wolf signed House Bill 1772 in November 2019, and it took effect in January 2020.2Commonwealth of Pennsylvania. Purple Paint Means No Trespassing The change amended 18 Pa.C.S. § 3503 to add purple paint as a recognized method of giving notice against trespass, alongside signs, fencing, and direct communication.3Pennsylvania General Assembly. Pennsylvania Code Title 18 3503 – Criminal Trespass The paint itself is the notice. A landowner does not have to prove you saw a sign or heard a warning before you crossed.

Where the Law Does Not Apply

Purple paint is enforceable everywhere in Pennsylvania except Philadelphia County and Allegheny County. The statute excludes counties of the first class (Philadelphia) and second class (Allegheny, which includes Pittsburgh).3Pennsylvania General Assembly. Pennsylvania Code Title 18 3503 – Criminal Trespass If you see purple marks on trees in either county, the owner clearly wants you off the land, but the paint alone would not support a trespass charge there. In those two counties, signs, fencing, or direct communication are the only methods that establish legal notice.

How to Recognize a Valid Mark

Not every splash of purple counts. To qualify as legal notice under 18 Pa.C.S. § 3503(b)(1)(vi), each mark has to meet three specifications:3Pennsylvania General Assembly. Pennsylvania Code Title 18 3503 – Criminal Trespass

  • A vertical line at least eight inches tall and one inch wide.
  • The bottom of the mark between three and five feet above the ground.
  • Marks no more than 100 feet apart, placed where someone approaching the property can readily see them.

In practice, that means a chest-high purple stripe on a tree, repeated along the boundary. Landowners face the painted side outward so people approaching from off the property see the warning first. If you’re on foot in the woods and you notice a purple mark on a tree, look around: another mark is usually visible within the same field of view.

An honest mistake about where a boundary runs does not erase the fact that the owner gave legally sufficient notice. Hunters on state game lands that border private parcels should pay close attention near property lines, especially in dense cover or low light. A GPS with property boundary data is the reliable way to avoid crossing onto posted ground.1Pennsylvania Game Commission. Purple Paint Law

Penalties for Crossing Purple-Painted Property

Entering land marked with valid purple paint is defiant trespass under 18 Pa.C.S. § 3503(b). The charge depends on what you do after you cross:

Steeper Penalties on Agricultural and Timber Land

Pennsylvania has a separate, harsher trespass provision for agricultural and open lands under 18 Pa.C.S. § 3503(b.2). The category is broad. It covers land used for farming, forested land capable of producing timber, land in an agricultural security area, and land zoned agricultural.5Pennsylvania General Assembly. Pennsylvania Code Title 18 3503 – Criminal Trespass

  • Entering posted agricultural land is a third-degree misdemeanor with up to one year in jail and a minimum fine of $250.
  • Refusing to leave after a personal warning is a second-degree misdemeanor with up to two years in jail and a fine between $500 and $5,000.5Pennsylvania General Assembly. Pennsylvania Code Title 18 3503 – Criminal Trespass

On regular land, purple paint plus one careless step is a $300 summary offense. On farmland or timberland, the same act starts as a misdemeanor with a mandatory minimum fine. If you’re not certain whether the ground you’re on qualifies as agricultural, assume the higher penalties apply.

Practical Guidance for Landowners

Walk the full boundary and start with the places people are most likely to drift in: corners, and where trails, roads, or streams cross the property line. Face the painted side of each tree outward. Marks that fall short on height, size, or spacing give a trespasser room to argue in court that notice was insufficient, so keep a dated record of when and where you applied the paint, ideally with timestamped photographs.

Traditional signs still work, and combining them with purple paint removes any ambiguity about intent.2Commonwealth of Pennsylvania. Purple Paint Means No Trespassing For owners in Allegheny or Philadelphia County, signs and fencing remain the only legal posting options.

What Purple Paint Does Not Block

The paint establishes notice for criminal trespass purposes; it does not override other legal rights of entry. Utility companies with recorded easements retain access to the easement area, law enforcement with a valid warrant can enter, and emergency responders are not turned away by a boundary mark. Painting your property lines protects them from casual visitors, hunters, and hikers, not from every person with a legal reason to be there.