Starting July 1, California will ban streaming ads that exceed broadcast loudness standards. The law forces services that insert ads server‑side to match program volume, eliminating the jarring spikes viewers have complained about. Major studios including Netflix, Disney, Amazon Prime Video and Paramount backed opposition, arguing they already monitor ad loudness.

Opponents cite technical hurdles: diverse encoding pipelines and a range of playback devices—from 4K TVs to smartphones—make consistent volume challenging. A September 2025 state Assembly analysis noted “many” services are working on the issue, but FCC data shows consumer irritation persists, with at least 1,700 complaints in 2024, up from 825 the year before.

Industry analysts predict providers will retrofit ad‑insertion workflows with file‑based and real‑time loudness controls, mirroring the processes already used for primary programming. Illinois passed a similar statute earlier, giving companies a precedent and pressure to comply nationwide. With the California deadline looming, streaming platforms must adjust or risk regulatory penalties and continued viewer backlash.

The rule also nudges advertisers to pre‑normalize audio levels before delivery, shifting responsibility upstream. While some fear increased production costs, the change could set a new industry baseline, improving the overall viewing experience across devices. Compliance will likely become a standard clause in future content‑distribution contracts.