SB 1178 imposes operating hour restrictions on concrete batch plants that use standard permits. The bill requires these facilities to only operate between 7:00 a.m. and 7:00 p.m., with vehicle transportation limited to 5:00 a.m. to 9:00 p.m. The executive director of TCEQ may authorize up to five days of alternative hours per year for special circumstances. Additionally, in the event of a disaster or emergency, regional offices may grant temporary exceptions to the operating hour limits. This bill seeks to reduce noise and environmental disturbances for nearby communities while maintaining operational flexibility​.