NEW Illinois Purple Paint Law will Help Prevent Trespassing

Posted by: BowStaff
Sep 2011

“Purple Paint Law” gives landowners option of marking trees or posts to prevent trespassing

SPRINGFIELD, IL – A new law signed by Governor Pat Quinn allows Illinois landowners or lessees the option of using purple paint markings on trees or posts on their property as a “no trespassing” notice.  The “Purple Paint Law” is designed as an alternative which Illinois landowners can use to protect their property from trespassing.

no trespassing sign with deer

The new law – Senate Bill 1914 – was signed by Governor Quinn on Aug. 22 and took effect immediately.

While the new “Purple Paint Law” gives Illinois landowners or lessees the option of marking their property with a series of defined purple paint markings on trees or posts, additional notice is still required through 2012.   Until January 1, 2013 those landowners using purple marks must continue to issue a “no trespassing” notice either by oral or written notice to individuals or by posting appropriate signage at the main entrance to the property in question.

Provisions of the new law require that the purple paint marks used to designate “no trespassing” notice must be either:

1.      A vertical line of at least 8 inches in length.  The bottom of the mark shall be between 3 feet and 5 feet high.  Each mark shall be no more than 100 feet from another such mark and be readily visible to any person approaching the property.


2.      A post capped or otherwise marked on at least its top 2 inches.  The bottom of the cap or mark shall be between 3 feet and 5 feet 6 inches high.  Posts so marked shall be no more than 36 feet apart and be readily visible to any person approaching the property.  Prior to applying a cap or mark that is visible from both sides of a fence shared by different property owners or lessees, all such owners or lessees must agree to the decision to post their own property.

Trespassing on property marked for “no trespassing” is a Class B misdemeanor, except when a person trespasses using a motor vehicle if the marked area is an orchard; an enclosed area containing livestock; a barn or other agricultural building containing livestock; or a field that is used or capable of being used for growing crops.  Such trespassing constitutes a Class A misdemeanor.

No landowner or lessee is authorized to post purple marks if doing so would violate any applicable law, rule, ordinance, order, covenant, bylaw, declaration, regulation, restriction, contract, or other instrument.

The new “Purple Paint Law” does not apply to real property located in a municipality of over 2,000,000 inhabitants.

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