The bill proposes the addition of a new subchapter to the Local Government Code, allowing unincorporated areas located outside the extraterritorial jurisdiction of a municipality to incorporate as a Type C general-law municipality if they are situated in or near a special flood hazard area. The bill defines key terms such as "outdoor warning siren" and "special flood hazard area," and outlines the process for residents or landowners to initiate incorporation through a petition to the county judge. The petition must include a proposed flood preparedness ordinance, which the newly incorporated municipality must adopt within 90 days of incorporation.

Additionally, the bill mandates that municipalities adopting this subchapter must establish a flood preparedness ordinance that includes requirements for flood hazard mitigation, compliance with the National Flood Insurance Program, and the prohibition of new structures within special flood hazard areas unless certain conditions are met. It also requires the installation of outdoor warning sirens and automated barriers for flood-prone roadways. The municipality will be automatically dissolved if it fails to adopt the required ordinance within the specified timeframe. The bill aims to enhance flood preparedness and response in vulnerable areas, ensuring compliance with state and federal regulations.

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