Decatur put it best.
Two way radios are defined. Make sure you fall into that definition.
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12. (1) Drivers of commercial motor vehicles may drive a commercial motor vehicle on a highway while holding or using a two-way radio. O. Reg. 366/09, s. 12 (1), O. Reg. 253/12, s. 2 (1); O. Reg. 424/15, s. 3 (1).
(2) The following persons, while engaged in the performance of their duties, may drive a motor vehicle on a highway while holding or using a two-way radio:
1. Drivers of motor vehicles clearly identified as courier delivery vehicles.
2. Drivers of roadside assistance service vehicles.
3. Drivers of taxicabs and limousines licensed by a municipality or airport authority to provide passenger service.
4. Drivers of street cars.
5. Drivers of road-building machines.
6. Over-dimensional vehicle escorts appointed under section 110.5 of the Act. O. Reg. 366/09, s. 12 (2), O. Reg. 253/12, s. 2 (2); O. Reg. 424/15, s. 3 (2); O. Reg. 214/18, s. 1.