California AB 1043 — Digital Age Assurance (OS/App Store Age Signaling) (CA AB 1043)
Requires operating systems and app stores to collect parent-declared age information at account setup and pass an age-category signal to downstream apps. Moves the age-assurance burden from individual apps to the OS/store tier so per-app re-verification becomes unnecessary.
Key Provisions
What CA AB 1043 requires
Operating systems and app stores must request a child's age band from the account-holding parent
OS/store must transmit a standardized age-category signal (under 13, 13–15, 16–17, adult) to apps
Apps that rely on the OS/store attestation are shielded from duplicative age-verification liability
Parental controls must allow correction of an age designation
California AG and CPPA enforcement authority
Rule Categories Covered
Phosra enforcement categories for CA AB 1043
Os Age Signal Ingest
otherEnforces os age signal ingest rules across connected platforms.
App Store Age Attestation
otherEnforces app store age attestation rules across connected platforms.
Age Gate
access controlEnforces age verification requirements and restricts access to age-inappropriate content or features.
Platforms Affected
Platforms covered by CA AB 1043
MCP Enforcement
Enforce CA AB 1043 with a single API call
// Enforce CA AB 1043 compliance
tool: trigger_child_enforcement
input: {
child_id: "ch_emma_01",
law: "CA_AB_1043",
rules: [
"os_age_signal_ingest",
"app_store_age_attestation",
"age_gate"]
}
→ iOS App Store enforcement applied ✓
→ Google Play enforcement applied ✓
→ Instagram enforcement applied ✓
→ TikTok enforcement applied ✓
Start building CA AB 1043-compliant features today
Phosra handles the complexity of multi-platform compliance so you can focus on building great products for families.