SB 576 adds Chapter 27.3 to the California Business and Professions Code to require that video streaming services serving California residents not transmit the audio of commercial advertisements at a higher perceived volume than the video content they accompany. The statute imports the standard-setting framework the Federal Communications Commission adopted under the Commercial Advertisement Loudness Mitigation (CALM) Act and makes the rule effective July 1, 2026.
The law covers internet‑protocol delivery of video programming and video content but expressly excludes traditional broadcast, cable, other multichannel video programming distributors, and services that do not carry commercials. The bill also states it does not create a private right of action, leaving enforcement and remedies unclear in the text itself.
For compliance and ad‑tech teams, the practical work will be measuring and normalizing loudness across content and dynamically inserted ads to the FCC‑consistent standard.
At a Glance
What It Does
The bill prohibits a video streaming service that serves California consumers from transmitting commercial audio at a louder average volume than the accompanying video content, and ties compliance to the FCC regulations adopted under the CALM Act.
Who It Affects
Any entity that delivers video programming or video content directly to consumers over internet protocol and that inserts or transmits commercial advertisements to users in California—excluding broadcast stations, cable operators, multichannel video programming distributors, and ad‑free services.
Why It Matters
This brings a longstanding television loudness standard into the streaming ecosystem, forcing technical and contractual changes across ad delivery stacks, ad‑insertion workflows, and creative production to avoid jarring volume jumps that consumers receive as intrusive.
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What This Bill Actually Does
SB 576 creates a state rule that streaming services serving Californians must not play commercials louder than the shows or videos those ads accompany. Rather than inventing a new measurement or threshold, the bill points to the FCC’s implementation of the CALM Act as the controlling standard, so streaming services must meet loudness parity “consistent with” those federal regulations.
The statute defines "video programming" by reference to federal law and defines "video streaming service" as entities that deliver video programming or video content directly to consumers by internet protocol; it excludes traditional broadcast, cable, and other multichannel video programming distributors and any service that offers content without commercial advertisements. The prohibition becomes operative on July 1, 2026.The law does not create a private right of action.
That means individuals cannot sue under this chapter simply because an ad played too loud; the text leaves enforcement mechanisms unspecified. Practically, streaming platforms, their ad servers, and third‑party ad providers will need to adopt loudness measurement and normalization steps—whether in content mastering, client playback, or ad stitching—to demonstrate that ad audio meets the referenced standard.Operationally, compliance will touch multiple places in the ad chain: how ads are mixed and delivered by advertisers, how ad insertion (client‑side or server‑side) affects overall loudness, and how players or SDKs apply real‑time normalization.
The bill does not prescribe a measurement algorithm itself, so providers will look to the FCC’s technical references to determine acceptable procedures and tolerances.
The Five Things You Need to Know
The prohibition takes effect July 1, 2026.
"Video streaming service" covers entities delivering video programming or video content directly to consumers via internet protocol, but excludes broadcast stations, cable operators, and other multichannel video programming distributors.
The bill ties the loudness requirement to the regulations the FCC adopted under the Commercial Advertisement Loudness Mitigation (CALM) Act—it requires consistency with those FCC rules rather than specifying a new numeric standard in state law.
Services that operate without commercial advertisements are exempt from the statute.
The chapter expressly states it does not create a private right of action, meaning the text gives no new private lawsuit avenue for consumers who experience loud ads.
Section-by-Section Breakdown
Every bill we cover gets an analysis of its key sections.
Definitions for the chapter
This section defines key terms. It adopts the federal definition of "video programming" by reference to 47 U.S.C. §613(h) and defines "video streaming service" as any entity that delivers video programming or video content directly to consumers over internet protocol. The provision also draws the exclusion line: traditional broadcast stations, cable operators, and other multichannel video programming distributors are not covered, nor are services that simply do not carry commercial advertisements. For compliance teams, these definitions determine whether a product or delivery mechanism falls inside the law and who must budget for remediation.
Loudness parity requirement aligned with FCC CALM regulations
This is the operative rule: on and after July 1, 2026, covered streaming services must not transmit ad audio that is louder than the accompanying video content, "consistent with" the FCC regulations adopted under the CALM Act. The phrasing imports the federal standard without reproducing the technical specifics, which means providers will rely on the FCC's measurement and normalization guidance (and any referenced recommended practices) to meet California's requirement. Practically, this affects ad encoding, catalog metadata (loudness metadata), ad insertion points, and playback normalization.
No private right of action
The chapter closes by stating it does not create a private right of action. That removes a direct civil‑suit enforcement path for consumers under this chapter; the bill itself does not designate a state enforcement agency or penalties. Businesses will therefore need to monitor administrative enforcement guidance or rulemaking from state agencies if the state pursues compliance avenues.
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Explore Technology in Codify Search →Who Benefits and Who Bears the Cost
Every bill creates winners and losers. Here's who stands to gain and who bears the cost.
Who Benefits
- California viewers who experience internet‑delivered video: they should see fewer sudden volume jumps when ads start, improving accessibility and user experience for all viewers.
- People with sound sensitivity or hearing conditions: consistent loudness reduces the risk of discomfort or harm from unexpectedly loud advertising audio.
- Ad‑free and premium tiers of streaming services: these tiers gain a compliance‑based competitive talking point against ad‑supported offerings and may avoid technical retrofit costs by remaining ad‑free.
- Audio and ad‑tech vendors offering loudness measurement and normalization tools: demand will rise for services that certify or normalize ad loudness in delivery chains.
Who Bears the Cost
- Streaming platforms that insert or stitch ads: they must update ingestion, ad stitching, and playback systems to measure and normalize loudness across programming and ads, which may require engineering resources and testing.
- Third‑party ad servers and exchange partners: ad creatives and delivery mechanisms may need new validation steps, contractual terms, or re‑encoding to meet the referenced standard.
- Advertisers and creative houses: legacy ad masters may need remastering or loudness metadata, increasing production costs or requiring new delivery specs for campaigns aimed at California audiences.
- State agencies or enforcement bodies (potentially): with no private right of action specified, the state will need to decide who enforces the law and absorb investigative and enforcement costs unless the legislature later amends funding.
Key Issues
The Core Tension
The bill balances a clear consumer protection goal—eliminating jarring ad volume—against substantial technical and contractual costs for streaming and ad‑tech ecosystems; it relies on federal FCC materials for technical rules while leaving enforcement and implementation detail to regulators and industry, creating a trade‑off between a concise statutory command and operational uncertainty.
The bill imports the FCC’s CALM framework without replicating technical parameters in state statute. That approach limits the legislature’s need to draft technical standards but shifts the burden of interpretation to companies that must identify which FCC materials govern streaming circumstances not contemplated when the FCC wrote the rules.
Streaming workflows (client‑side insertion, server‑side ad insertion, concatenated manifests, variable bit‑rate encoding) create measurement and normalization complexities that the CALM implementation for broadcast never had to address.
Enforcement and remedies are also unresolved. By removing a private right of action, the text implies public enforcement, but it does not specify which state agency has authority, what penalties apply, or what notice and cure processes might exist.
That gap creates uncertainty for both platforms and consumers: platforms lack a predictable compliance playbook tied to state enforcement guidance, and consumers lack a statutory private remedy. Finally, practical workarounds—like compressing dynamic range or automatic gain tricks—may blunt the consumer benefit if vendors focus on passing loudness meters rather than improving subjective listening experience.
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