King County, WA — Ordinance outlawing algorithmic rent price fixing in unincorporated King County
King County, WA · Ordinance outlawing algorithmic rent price fixing in unincorporated King County
King County (sponsored by Councilmember Teresa Mosqueda, passed Sept 23, 2025 as the 11th US jurisdiction) prohibits landlords in unincorporated King County from contracting with algorithmic rent-setting services like RealPage, letting harmed renters sue for up to $7,500 per violation plus damages and attorneys' fees.
Technical detail
King County (sponsored by Councilmember Teresa Mosqueda, passed Sept 23, 2025 as the 11th US jurisdiction) prohibits landlords in unincorporated King County from contracting with algorithmic rent-setting services like RealPage, letting harmed renters sue for up to $7,500 per violation plus damages and attorneys' fees.
Who is protected: People subject to this body's AI/surveillance systems.
Who must comply: King County, WA
Key facts
| Jurisdiction | King County, WA |
|---|---|
| Level | County |
| Status | In effect |
| Protection strength | Limited protection |
| Effective date | 2025-09-23 |
| Citation | Ordinance outlawing algorithmic rent price fixing in unincorporated King County |
| Topics | consumer protection · automated decision-making · government use of AI |
| Last verified | 2026-07-01 |
| Official source | Council approves Mosqueda legislation outlawing rent price fixing in King County - King County, Washington ↗ |
More AI rules in King County, WA
- King County GenAI Guidelines · In effect
- King County FR Ban · In effect
- Ordinance prohibiting King County government and Sheriff use · In effect
Related consumer protection rules elsewhere
- Missouri AI Therapy Chatbot Ban (SB 1019) · Enacted (not yet in effect)
- Vermont Data Broker Law (H.211) · Enacted (not yet in effect)
- Arkansas Frank Broyles Act AI amendment — voice and likeness protection (2025) · In effect
- PA v. Character.AI (Fake Psychiatrist Chatbot) · Blocked / in litigation
- NAACP v. xAI (Colossus 2 Air Pollution) · Blocked / in litigation
- RI Therapy Chatbot Ban (2026) · In effect
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