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 Idaho Department of Transportation $1,485,270.03 on October 1, 2025, under the Section 405(d) Impaired Driving Countermeasures Grant program (CFDA 20.616, National Priority Safety Programs).

The recipient will use the funding to support state impaired driving countermeasures programs, including adoption and enforcement of mandatory alcohol-ignition interlock laws and 24/7 sobriety programs. Activities are designed to reduce crashes, injuries, and fatalities resulting from motor vehicle crashes. Idaho DOT will implement these countermeasures through projects identified in its approved triennial highway safety plan and annual grant application, with programming guided by problem identification, performance measures, and documented countermeasure strategies.

The award obligates $1,485,270.03 with a period of performance from October 1, 2025, through September 30, 2029. Place of performance is Garden City, Idaho. The Section 405(d) program apportions funding to qualifying states using a statutory formula based on an approved triennial highway safety plan and annual grant application. Idaho DOT, as the state's designated highway safety office, receives and distributes federal transportation formula grants to sub-recipients including metropolitan planning organizations, local transit operators, and local law enforcement partners engaged in highway safety work.

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.