How long is a driver's license suspended for the first occurrence in the warn range?

The correct duration for a driver's license suspension due to a first occurrence in the warn range is 3 days. The "warn range" typically refers to a blood alcohol concentration that is above 0.05 but below 0.08. In Ontario, when a driver is found in this range for the first time, the law mandates a suspension of their driving privileges for this specific period. This is designed to serve as a deterrent to prevent drivers from continuing to operate a vehicle while impaired, even if they haven't reached the legal limit for criminal charges.

The other durations mentioned do not reflect the legal standard set for first-time offenses in the warn range, making them inadequate as answers to this specific question. Therefore, the 3-day suspension is a clear reflection of Ontario's approach to managing and reducing impaired driving incidents.