Senate committee substitute makes the following changes to 1st edition. Amends GS 136-32, to clarify that the Department of Transportation (DOT) may remove signs erected without authority or remaining beyond the deadline (previously, authorized DOT or any person to remove). Deletes provision authorizing a person to place signs in rights-of-way if three specified conditions are met. Allows a permittee to place signs after obtaining permission from the property owner of a residence, business, or religious institution fronting the right-of-way, as detailed. Deletes provisions concerning the procedures to be adopted by the State Board of Elections, and penalties for permit holders. Clarifies that a city may, by ordinance, prohibit or regulate the placement of political signs on rights-of-ways of streets maintained by the city and located within its corporate limits. Absent such an ordinance, certain provisions of this act apply. Makes other clarifying changes.