Which of the following is a legal requirement for commercial drivers in Ontario?

Holding a valid driver’s license appropriate for the vehicle class is a legal requirement for commercial drivers in Ontario. This requirement ensures that drivers possess the necessary skills and knowledge to operate the type of vehicle they are driving, which may differ significantly from standard passenger vehicles. The licensing process for commercial drivers includes specific testing and training tailored to the responsibilities and challenges of managing larger and more complex vehicles, thus promoting safety on the roads.

In Ontario, drivers must obtain a commercial driver's license (CDL) that corresponds with the weight and type of vehicle they intend to operate. This regulation not only helps establish a baseline of competency but also ensures that drivers are familiar with the regulations and safety protocols relevant to their particular vehicle class.

As for the other options, requiring a minimum of two years of driving experience or carrying a personal identification card doesn’t specifically relate to the legal standards set for commercial drivers. Additionally, the necessity of being accompanied by a co-driver is not a legal mandate, although it may be beneficial in certain operational contexts or long-haul situations.