Section 405(d) impaired driving countermeasures grant (23 C.F.R. § 1300.23; 23 U.S.C. § 405(d)) ― grant to support certain costs of state impaired driving countermeasures programs consistent…

The National Highway Traffic Safety Administration awarded the Iowa Department of Public Safety $2,738,005.64 on October 1, 2025, under the National Priority Safety Programs formula grant (CFDA 20.616), Section 405(d) Impaired Driving Countermeasures, with performance extending through September 30, 2029.

The funding supports Iowa's state impaired driving countermeasures programs, including costs associated with adoption and enforcement of mandatory alcohol-ignition interlock laws and 24/7 sobriety programs. The Iowa Department of Public Safety, operating from Des Moines, administers the award in accordance with an approved triennial highway safety plan and annual grant application that identify problem areas, performance measures, and countermeasure strategies designed to reduce crashes, injuries, and fatalities resulting from motor vehicle crashes.

The National Priority Safety Programs formula grant is designed to encourage states to address national highway safety priorities. States must meet statutory requirements specific to their selected program area; qualifying states for the 405(d) impaired driving program are designated as low-range, mid-range, or high-range states. Funds are apportioned using a statutory formula and provided to state and territorial highway safety offices based on approved plans and applications. The federal share is reimbursed on claims submitted through the Electronic Transfer of Funds method.

Section 405(d) impaired driving countermeasures grant (23 C.F.R. § 1300.23; 23 U.S.C. § 405(d)) ― grant to support certain costs of state impaired driving countermeasures programs consistent with 23 C.F.R. § 1300.23(j). 405(d) funding is used for impaired driving countermeasures. Qualifying states must meet statutory requirements and can also receive funding for adoption and enforcement a mandatory alcohol-ignition interlock laws and 24/7 sobriety programs. These funds are apportioned using statutory apportionment formula. These funds are provided to the state and territorial highway safety offices based on an approved triennial highway safety plan that details problem identification, public participation and engagement, performance measures, countermeasure strategies for programming funds and an approved annual grant application that details planned projects using identified countermeasure strategies for programming funds to help reduce crashes, injuries and fatalities resulting from motor vehicle crashes.