Tangipahoa Parish, LA Sign Regulations: Freeway-Facing Signs (2026)

Off-premises outdoor advertising along Interstate 12, Interstate 55 and other thoroughfares in the rural and unincorporated parts of the parish is governed by Chapter 4, Division 2 of the parish code. Sec. 4-62 sets a normal 60-foot height cap for off-premises signs, measured from ground level at the sign's supports or the nearest edge of the right-of-way, whichever is higher. Sec. 4-62(c) carves out one exception: signs pointing travelers to food, lodging and fuel carry no height limit at all, but only if the copy is limited to an emblem, insignia, trademark or trade name and the sign sits along the federal highway system.

Spacing is controlled separately by Sec. 4-63. On the interstate roadway system and every other thoroughfare where off-premises advertising is allowed, no two structures on the same side of the road may stand closer than 1,000 feet apart, measured along the nearest edge of pavement between points directly opposite the structures. A tighter 250-foot rule applies where one sign is oriented to a different, intersecting street. Every off-premises sign must also be set back at least ten feet from the street right-of-way or 20 feet from the edge of pavement, whichever is greater, and none may sit within or over a public right-of-way.

Sec. 4-61 further confines these signs to areas zoned commercial, rural or industrial, or unzoned land; they cannot go up in any residentially zoned area. A permit from the office of the parish council, backed by an engineering drawing, is required for every off-premises sign or structure before it goes up.