MA S994

Prohibits landlords from using algorithmic devices or software that process nonpublic competitor data to set rent prices, determine rent changes, or establish occupancy levels for residential dwelling units

Defines "algorithmic device" as computational processes including AI and machine learning that use nonpublic competitor data to advise landlords on rent amounts

Exempts trade association reports published monthly or less frequently with aggregated anonymous data, and tools used to establish rent limits for affordable housing programs

Violations constitute unfair or deceptive trade practices under Chapter 93A, exposing violators to consumer protection enforcement and remedies

Takes effect 90 days after passage