California · Senate Bill · 2025–2026 Regular Session
SB384
California SB 384 — Preventing Algorithmic Price Fixing Act: prohibition on certain price-setting algorithm uses

Status ● Engrossed Effective N/A Passage Likelihood H

WHAT THIS BILL REGULATES · 1 REQUIREMENT TYPE

How Is This Bill Enforced

Enforcement Authority
The Attorney General, a city attorney, or county counsel may file a civil action for violations. No private right of action. Enforcement is agency-initiated.
Private Right of Action
No private right of action. Enforcement is exclusive to the designated authority.
Penalties
Civil penalties of up to $1,000 per violation, damages, injunctive relief, and restitution. Reasonable attorney's fees and costs awarded to the prevailing Attorney General, city attorney, or county counsel.

What This Bill Requires

Verbatim statutory text on the left; plain-language analysis and a per-section checklist on the right. Numbered markers cross-link to the matching checklist row.

Statutory Text
Analysis & Obligations
Section 1
Short title

This act shall be known, and may be cited, as the Preventing Algorithmic Price Fixing Act.

Section 1 establishes the short title of the act as the Preventing Algorithmic Price Fixing Act. It imposes no substantive obligations.

Bus. & Prof. Code § 22949.85
Prohibition on price-fixing algorithm use, enforcement, and definitions
Deployer

(a) 1 In addition to any other law, a sellerSeller\"Seller\" means either of the following: (i) A person or business entity who sells or leases a good or service to a consumer. (ii) A landlord. \"Seller\" includes a person or a business entity that utilizes a price-fixing algorithm on behalf of a person or business described in subparagraph (A).Bus. & Prof. Code § 22949.85(c)(4) shall not use a price-fixing algorithmPrice-fixing algorithm\"Price-fixing algorithm\" means a software, system, process, algorithmic program, or artificial intelligence that does both of the following: (A) Accepts the historical or contemporaneous nonpublic input data of two or more sellers on the price, price change, or supply level of a good or service or rent or occupancy level of rental property from one or more sellers. (B) Processes the nonpublic input data described in subparagraph (A) for the purpose of producing a pricing or rental strategy.Bus. & Prof. Code § 22949.85(c)(3) to set either of the following: (1) A price or supply level of a good or service. (2) A rent or occupancy level of rental property.

(b) The Attorney General, in the name of the people of the State of California, or a city attorney or county counsel, in the name of the city or county, may file a civil action for a violation of this section for damages, injunctive relief, restitution, or civil penalties of up to one thousand dollars ($1,000) per violation, or any combination of those remedies. The court shall award reasonable attorney's fees and costs to the Attorney General, city attorney, or county counsel, as applicable, if they are the prevailing party in the action.

(c)(1) \"Artificial intelligenceArtificial intelligence\"Artificial intelligence\" means a machine-based system that can, for a given set of human-defined objectives, make predictions, recommendations, or decisions influencing real or virtual environments.Bus. & Prof. Code § 22949.85(c)(1)\" means a machine-based system that can, for a given set of human-defined objectives, make predictions, recommendations, or decisions influencing real or virtual environments.

(c)(2) \"Nonpublic input dataNonpublic input data\"Nonpublic input data\" means data that is competitively sensitive, including, but not limited to, price, output, customers, or sales territory.Bus. & Prof. Code § 22949.85(c)(2)\" means data that is competitively sensitive, including, but not limited to, price, output, customers, or sales territory.

(c)(3) \"Price-fixing algorithmPrice-fixing algorithm\"Price-fixing algorithm\" means a software, system, process, algorithmic program, or artificial intelligence that does both of the following: (A) Accepts the historical or contemporaneous nonpublic input data of two or more sellers on the price, price change, or supply level of a good or service or rent or occupancy level of rental property from one or more sellers. (B) Processes the nonpublic input data described in subparagraph (A) for the purpose of producing a pricing or rental strategy.Bus. & Prof. Code § 22949.85(c)(3)\" means a software, system, process, algorithmic program, or artificial intelligenceArtificial intelligence\"Artificial intelligence\" means a machine-based system that can, for a given set of human-defined objectives, make predictions, recommendations, or decisions influencing real or virtual environments.Bus. & Prof. Code § 22949.85(c)(1) that does both of the following: (A) Accepts the historical or contemporaneous nonpublic input data of two or more sellersSeller\"Seller\" means either of the following: (i) A person or business entity who sells or leases a good or service to a consumer. (ii) A landlord. \"Seller\" includes a person or a business entity that utilizes a price-fixing algorithm on behalf of a person or business described in subparagraph (A).Bus. & Prof. Code § 22949.85(c)(4) on the price, price change, or supply level of a good or service or rent or occupancy level of rental property from one or more sellersSeller\"Seller\" means either of the following: (i) A person or business entity who sells or leases a good or service to a consumer. (ii) A landlord. \"Seller\" includes a person or a business entity that utilizes a price-fixing algorithm on behalf of a person or business described in subparagraph (A).Bus. & Prof. Code § 22949.85(c)(4). (B) Processes the nonpublic input dataNonpublic input data\"Nonpublic input data\" means data that is competitively sensitive, including, but not limited to, price, output, customers, or sales territory.Bus. & Prof. Code § 22949.85(c)(2) described in subparagraph (A) for the purpose of producing a pricing or rental strategy.

(c)(4) \"SellerSeller\"Seller\" means either of the following: (i) A person or business entity who sells or leases a good or service to a consumer. (ii) A landlord. \"Seller\" includes a person or a business entity that utilizes a price-fixing algorithm on behalf of a person or business described in subparagraph (A).Bus. & Prof. Code § 22949.85(c)(4)\" means either of the following: (i) A person or business entity who sells or leases a good or service to a consumer. (ii) A landlord. (B) \"SellerSeller\"Seller\" means either of the following: (i) A person or business entity who sells or leases a good or service to a consumer. (ii) A landlord. \"Seller\" includes a person or a business entity that utilizes a price-fixing algorithm on behalf of a person or business described in subparagraph (A).Bus. & Prof. Code § 22949.85(c)(4)\" includes a person or a business entity that utilizes a price-fixing algorithmPrice-fixing algorithm\"Price-fixing algorithm\" means a software, system, process, algorithmic program, or artificial intelligence that does both of the following: (A) Accepts the historical or contemporaneous nonpublic input data of two or more sellers on the price, price change, or supply level of a good or service or rent or occupancy level of rental property from one or more sellers. (B) Processes the nonpublic input data described in subparagraph (A) for the purpose of producing a pricing or rental strategy.Bus. & Prof. Code § 22949.85(c)(3) on behalf of a person or business described in subparagraph (A).

This section is the bill's sole operative provision. Subdivision (a) prohibits any seller from using a price-fixing algorithm to set prices, supply levels, rents, or occupancy levels. The prohibition is framed as supplemental — it applies "in addition to any other law," preserving antitrust and other existing causes of action.

Subdivision (b) vests enforcement authority exclusively in the Attorney General, city attorneys, and county counsel, with a menu of remedies including damages, injunctive relief, restitution, and civil penalties up to $1,000 per violation. Attorney's fees are recoverable by prevailing government plaintiffs. There is no private right of action.

Subdivision (c) defines four key terms. The definition of price-fixing algorithm is functionally two-pronged: the algorithm must (1) accept historical or contemporaneous nonpublic competitively sensitive data from two or more sellers and (2) process that data to produce a pricing or rental strategy. The definition of seller is broad, capturing persons or businesses that sell or lease goods and services to consumers, landlords, and any person or entity that operates a price-fixing algorithm on behalf of such persons — thereby reaching third-party algorithmic pricing vendors.

Compliance actions 1 item
1
SellersSeller\"Seller\" means either of the following: (i) A person or business entity who sells or leases a good or service to a consumer. (ii) A landlord. \"Seller\" includes a person or a business entity that utilizes a price-fixing algorithm on behalf of a person or business described in subparagraph (A).Bus. & Prof. Code § 22949.85(c)(4) must not use a price-fixing algorithmPrice-fixing algorithm\"Price-fixing algorithm\" means a software, system, process, algorithmic program, or artificial intelligence that does both of the following: (A) Accepts the historical or contemporaneous nonpublic input data of two or more sellers on the price, price change, or supply level of a good or service or rent or occupancy level of rental property from one or more sellers. (B) Processes the nonpublic input data described in subparagraph (A) for the purpose of producing a pricing or rental strategy.Bus. & Prof. Code § 22949.85(c)(3) — any software, system, algorithmic program, or AI that ingests nonpublic competitively sensitive data from two or more sellersSeller\"Seller\" means either of the following: (i) A person or business entity who sells or leases a good or service to a consumer. (ii) A landlord. \"Seller\" includes a person or a business entity that utilizes a price-fixing algorithm on behalf of a person or business described in subparagraph (A).Bus. & Prof. Code § 22949.85(c)(4) and processes it to produce a pricing or rental strategy — to set the price or supply level of a good or service, or the rent or occupancy level of rental property.
CP-03

Passage Likelihood

High
Status Engrossed
Chamber Passed origin
Committee Passed
Majority party Yes
Bipartisan No
Prior session None

Legislative History

2025-02-14 Introduced. Read first time. To Com. on RLS. for assignment. To print.
2025-02-18 From printer. May be acted upon on or after March 17.
2025-02-26 Referred to Com. on JUD.
2025-04-03 Set for hearing April 22.
2025-04-08 From committee with author's amendments. Read second time and amended. Re-referred to Com. on JUD.
2025-04-23 From committee: Do pass as amended and re-refer to Com. on APPR. (Ayes 11. Noes 2. Page 834.) (April 22).
2025-04-24 Read second time and amended. Re-referred to Com. on APPR.
2025-04-29 Set for hearing May 5.
2025-05-05 May 5 hearing: Placed on APPR. suspense file.
2025-05-16 Set for hearing May 23.
2025-05-23 From committee: Do pass. (Ayes 5. Noes 1. Page 1198.) (May 23).
2025-05-23 Read second time. Ordered to third reading.
2025-06-03 Read third time. Passed. (Ayes 28. Noes 10. Page 1469.) Ordered to the Assembly.
2025-06-04 In Assembly. Read first time. Held at Desk.
2025-06-09 Referred to Coms. on JUD. and P. & C.P.
2025-06-26 From committee with author's amendments. Read second time and amended. Re-referred to Com. on JUD.
2025-07-02 From committee: Do pass and re-refer to Com. on P. & C.P. (Ayes 9. Noes 2.) (July 1). Re-referred to Com. on P. & C.P.
2025-07-17 Assembly Rule 63 suspended. (Ayes 49. Noes 15. Page 2578.)
2025-07-17 From committee: Do pass as amended and re-refer to Com. on APPR. (Ayes 9. Noes 4.) (July 16).
2025-07-17 Read second time and amended. Re-referred to Com. on APPR.
2025-08-20 August 20 set for first hearing. Placed on APPR. suspense file.
2025-08-29 August 29 hearing: Held in committee and under submission.

Entry Last Reviewed

2026-05-20
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