Law / United States / Maryland / Rockville
Price Coordination and Algorithmic Devices
Rockville City Code ch. 18, sec. 18-148
An AI prohibited practices rule binding private bodies.
- How the hook was established
- express
- What it reaches
- capability
- What makes it apply
- Place of effect
- Obligation class
- Prohibition
- Audit expectation
- none
What it requires
- Beginning , a residential landlord in Rockville who uses a product or service built on algorithms and nonpublic competitor pricing, occupancy, or lease-term data from two or more landlords to recommend rents, fees, terms, or occupancy levels violates this section, so do not offer that capability for a Rockville landlord's use
- A Rockville landlord who subscribes to or pays for such a product or service also violates this section
These lines are LexLint's reading of the law's text.
In the frameworks
- NIST AI RMF
- MAP 3.3Targeted application scope is specified and documented based on the system’s capability, established context, and AI system categorization.
- NIST AI 600-1
- GAI-RISK-08Information Integrity
- GAI-RISK-11Obscene, Degrading, and/or Abusive Content
- MIT mitigations Draft
- FINOS AIGF
- AIR-PREV-005System Acceptance Testing
- ETSI EN 304 223
Our reading of where this law's duties sit in each framework. It never says that running a control meets the law. How we read a framework against the law
Identifiers refer to ETSI EN 304 223 V2.1.1 (2025-12), © ETSI 2025, all rights reserved. ETSI owns the standard; no ETSI text (titles or sentences) is reproduced here. The standard is free to download from ETSI.
Who enforces it
Settledness
- As of
- Open questions
- How does a vendor show that data is "less than 90 days old" under the definition of non-public competitor data in Rockville City Code section 18-148(a) when its tool mixes older and newer inputs?
What it makes you log
Logging duty
The adopted ordinance's section 18-148 bars a landlord from using an algorithmic device, engaging in price coordination, agreeing not to compete, and subscribing to an algorithmic device or price coordination services, makes each violation a municipal infraction, and sets no duty to log, record, or otherwise document a rent-setting decision.
- Kind
- None
- As of
What this law does
Under Rockville City Code section 18-148, a landlord must not use an algorithmic device regarding the rent, fees, or any other rental term for a dwelling unit within the City. An algorithmic device is a product or service that uses one or more algorithms to perform calculations, uses non-public competitor data from two or more landlords, and recommends rents, fees, rental terms, renewal terms, or occupancy levels for a dwelling unit.
A landlord must also not engage in price coordination, agree with any other person not to compete on rent, fees, or any other rental term, or subscribe to or pay for an algorithmic device or price coordination services.
The definition of an algorithmic device excludes a periodic report published not more than once a month that publishes existing rental data in an aggregated and anonymous manner without recommending rental prices, fees, rental terms, or occupancy levels for future leases, a product or service used to establish rent or income limits under a government affordable housing program, and a product or service used by a person who is the landlord of only one rental unit in the City.
Each violation is a municipal infraction. The Mayor and Council adopted the ordinance on . The ordinance takes effect on .
When LexLint raises it
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