What is implied consent in the context of commercial driving?

Implied consent in the context of commercial driving refers to the legal principle that individuals who operate a commercial vehicle automatically consent to submit to chemical testing for drugs and alcohol when requested by law enforcement. This means that by choosing to drive a commercial vehicle, the driver agrees, in advance, to comply with requests for testing if they are suspected of driving under the influence. This law is intended to promote road safety and discourage impaired driving, ensuring that drivers understand the consequences of their actions on the road.

The other options do not pertain to the legal expectations surrounding implied consent. Following traffic signals, serving passengers, and avoiding mobile device usage are important rules for safe driving but do not involve the legal obligation to undergo testing as implied consent does.