Suburban Law Enforcement Academy (SLEA) BA State Certification Practice Exam

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In what year did NHTSA mandate that all vehicle VINs must be 17 characters long?

  1. 1976

  2. 1981

  3. 1991

  4. 1986

The correct answer is: 1981

The National Highway Traffic Safety Administration (NHTSA) mandated that all vehicle identification numbers (VINs) must be exactly 17 characters long beginning with the 1981 model year. This standardization was implemented to improve vehicle identification and enhance law enforcement's ability to track vehicles, reduce theft, and ensure accurate vehicle history reporting. By establishing a uniform VIN length, the NHTSA aimed to ensure consistency across all vehicles manufactured, thus aiding in data management and safety regulation efforts. The other years listed do not correspond to this significant regulatory change, as the requirements before 1981 were less standardized.