To counter the dangerous behaviors of driving, Ontario law includes seven-day vehicle impoundments for:

• Drivers operating a vehicle while under a Highway Traffic Act licence suspension
• Drivers caught without a required ignition interlock
• Both A and B
  Explanation:

  "Ontario law imposes seven-day vehicle impoundments on drivers under licence suspension (Highway Traffic Act or Criminal Code), those caught without a required ignition interlock, and those with a BAC over 0.08 or who fail/refuse a demand from a police officer."
• None of the above