S.3156: A bill to require the Federal Communications Commission to prescribe a standard to preclude commercials from being broadcast at louder volumes than the program material they accompany.

Commercial Advertisement Loudness Mitigation Act - Directs the Federal Communications Commission (FCC) to prescribe a regulation prohibiting advertisements accompanying video programming from: (1) being excessively noisy or strident; (2) having modulation levels substantially higher than the accompanying program; and (3) having an average maximum loudness substantially higher than that of the accompanying program.