Substitute House Bill No. 6915 seeks to prohibit the use of second-generation anticoagulant rodenticides in Connecticut, effective October 1, 2025. These rodenticides are defined as those containing active ingredients such as Brodifacoum, bromadiolone, difenacoum, and difethialone. The bill includes several exceptions, allowing state employees to use these substances for specific purposes, including public health activities, water supply protection, mosquito control, invasive species eradication, and certain agricultural applications. The Commissioner of Energy and Environmental Protection is granted the authority to adopt regulations to ensure that the use of these rodenticides does not harm non-target wildlife.

Furthermore, the bill mandates the Commissioner to submit a report by January 1, 2027, evaluating the implications of current restrictions and licensing requirements for these rodenticides, including their alignment with federal law and potential impacts on public health and agriculture. Violations of the prohibition could result in civil penalties of up to $5,000 per infraction. The bill also introduces a definition for "public health need," which requires documentation to demonstrate that alternative rodent control methods are insufficient. Overall, the legislation is expected to incur annual costs of approximately $101,462 for the state, primarily for additional staffing to enforce the new regulations.