Section 405(d) alcohol-ignition interlock grant (23 C.F.R. § 1300.23(g); 23 U.S.C. § 405(d)(6)) ― incentive grant awarded to states with conforming alcohol-ignition interlock laws that may be used…

The National Highway Traffic Safety Administration awarded the Louisiana Highway Safety Commission $312,786.53 on October 1, 2025, under the Section 405(d) Alcohol-Ignition Interlock Grant program to fund impaired driving countermeasures. The award supports adoption and enforcement of mandatory alcohol-ignition interlock laws and 24/7 sobriety programs, with performance through September 30, 2029. Louisiana qualifies as a conforming state under 23 U.S.C. § 405(d)(6) and received this incentive grant amount through the statutory apportionment formula established for the National Priority Safety Programs (CFDA 20.616).

The Louisiana Highway Safety Commission, the designated state highway safety office, uses these funds to reduce crashes, injuries, and fatalities from motor vehicle crashes. The Commission develops countermeasure strategies documented in its approved triennial highway safety plan and annual grant applications, identifying eligible projects consistent with 23 C.F.R. § 1300.23(j). Work is performed in Baton Rouge, Louisiana. The Commission administers formula grant funding statewide, including pass-through awards to sub-recipients such as law enforcement agencies, DWI courts, and local nonprofits that implement behavioral highway safety initiatives and enforcement programs across Louisiana parishes.

Section 405(d) alcohol-ignition interlock grant (23 C.F.R. § 1300.23(g); 23 U.S.C. § 405(d)(6)) ― incentive grant awarded to states with conforming alcohol-ignition interlock laws that may be used for any eligible use 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.