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.