Maryland's Ignition Interlock Program: Driver and Vendor Monitoring

Maryland's alcohol ignition interlock program is often used as a model program for other states. Alcohol ignition interlock legislation passed in Maryland in January 1989, and the first ignition interlock device was approved in September 1989. Vendor standards were created to offer quality assurance via device regulations, on-site inspections, and standards for documentation and facilities. After the device is installed, the driver using it is required to have a restricted driver's license issued. The interlock device is monitored every 30 days. Information captured by the data logger contains the personal information of the driver, including vehicle tag, make and model, and driver license number. The data logger records blood alcohol levels, breath test results, every vehicle start, and efforts to tamper with the interlock device or circumvent it, along with other data. Program violations are listed in the paper, as well as consequences for repeated violations.


  • English

Media Info

  • Media Type: Web
  • Pagination: pp 28-30
  • Monograph Title: Alcohol Interlock Programs: Enhancing Acceptance, Participation and Compliance. Proceedings of the Fourth International Symposium on Alcohol Ignition Interlock Programs, Hilton Head, South Carolina, October 27-28, 2003

Subject/Index Terms

Filing Info

  • Accession Number: 01001993
  • Record Type: Publication
  • ISBN: 0920071503
  • Files: TRIS
  • Created Date: Jul 7 2005 3:49PM