Substitute House Bill No. 7153 establishes two new infrastructure improvement districts: the Port Eastside Infrastructure Improvement District in East Hartford and the Park City Landing Infrastructure Improvement District in Bridgeport. The bill outlines the governance structure, operational protocols, and types of improvements that can be made within these districts, such as roads, sidewalks, and recreational facilities. Key provisions include the requirement for a petition from eligible voters to initiate the establishment of the district, the need for a two-thirds majority vote for approval, and the authority for the district to levy taxes and collect benefit assessments on properties that benefit from improvements. New legal language inserted into the bill includes definitions for terms like "Benefit assessment" and "Approval for district improvements," as well as procedural guidelines for meetings, voting, and the issuance of bonds.

The bill also introduces measures for transparency and accountability, such as requiring public hearings on proposed assessments and mandating that financial records be maintained and reported to state officials. It allows the districts to issue bonds up to $125 million in East Hartford and $190 million in Bridgeport, contingent upon interlocal agreements with their respective towns. Additionally, the bill clarifies the voting rights of property owners and establishes procedures for the termination of the districts, ensuring that all outstanding debts are settled before dissolution. Overall, the legislation aims to streamline the governance and financial management of the districts while ensuring public participation and oversight.