HI SB157

Prohibits "coordinating functions" in Hawaii's rental market, making it unlawful for software operators to collect rental pricing data from multiple landlords, process it through algorithms, and recommend rental prices, lease terms, or occupancy levels

Bans landlords from engaging in "consciously parallel pricing coordination" (tacit agreements to manipulate pricing) and prohibits software coordinators from facilitating agreements that restrict competition on rental pricing or lease terms

Establishes lower pleading standards for civil antitrust complaints related to rental price-fixing, requiring plaintiffs only to show collusion is among "plausible possibilities" without needing to exclude the possibility of independent action

Requires the Department of the Attorney General to develop a public education program about the new prohibitions and adopt administrative rules for implementation

Sets penalties of up to $100,000 fine and/or 3 years imprisonment for individuals, and up to $1,000,000 fine for corporations violating the provisions; effective July 1, 2050