Relating to the adoption and voidability of certain rules proposed by a state agency.

HB 2338 modifies Texas state agency rulemaking procedures by exempting certain rules from full procedural review requirements. It specifically excludes rules that reduce costs or burdens on regulated businesses, respond to natural disasters, comply with federal law, protect water resources, or are adopted by agencies like DPS, TXDOT, or the Public Utility Commission. The bill also establishes a two-year deadline for challenging rules that lack proper procedural compliance. This change applies only to rules proposed on or after September 1, 2025, leaving pre-existing rules governed by prior law.