(1) Specific information signs shall be erected not less than 800 feet in advance of the exit direction sign at interchanges.

(2) The exact location of specific information signs and supplemental directional signs shall be determined by the franchisee, subject to approval by the department; however, the signs shall be located so as to avoid conflict with other signs within the highway right-of-way. Lateral clearance and height shall be as specified in 2A-23 and 2A-24 of the Manual on Uniform Traffic Control Devices.

(3) Spacing between each specific information sign shall be not less than 800 feet, or more than 1,000 feet unless there are other intervening signs or other significant site considerations.

(4) Specific information signs shall be located at least 800 feet from existing highway guide signs.

(5) Specific information signs may not be erected at an interchange where an exit ramp is provided but no convenient reentry ramp exists in the same direction of travel.

(6) Specific information signs may not be erected on interchanges where interchange ramps connect directly to another interstate highway, except where the interstate highway connects to an interstate spur.

(7) Specific information signs shall be erected with a lateral offset equal to or greater than existing guide signs, and they should be at least 30 feet from the edge of the traveled way, where possible.