California's CALM Act Extension Closes Streaming Ad Loophole July 1

California's SB 576 takes effect July 1, 2026, requiring streaming platforms to comply with federal CALM loudness standards—the same rules governing broadcast and cable since 2012. The law caps advertisement audio at the level of surrounding program content, using integrated loudness measurement rather than peak levels. Streaming platforms built without loudness normalization pipelines now face real implementation complexity in ad-serving workflows, with enforcement through state attorney general and consumer litigation rather than dedicated FCC oversight.