Modifies provisions relating to outdoor advertising

Based solely on the provided context, a detailed summary of SB 1161 cannot be generated. The bill's title and official abstract only state it "modifies provisions relating to outdoor advertising" without specifying the nature of the modifications, affected entities (e.g., billboard companies, municipalities), or key mechanisms. No substantive details about policy changes, affected groups, or specific provisions are included in the available information. Therefore, a factual summary meeting the requested criteria cannot be provided.