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

SB 138 modifies Texas law governing when state agency rules can be challenged. It creates exceptions to voidability rules for agency actions that reduce regulatory burdens, respond to natural disasters, comply with federal requirements, protect water resources, or are adopted by specific agencies like DPS or TxDOT. The bill also establishes a two-year deadline for individuals to challenge rules not adopted per proper procedures. These changes apply only to rules proposed on or after September 1, 2025. The law aims to streamline regulatory processes for certain agency actions while maintaining procedural safeguards.