B.C. log haulers have special rules applying to them, different from the general rules for commercial drivers.
For those readers inclined to do so, I invite you to go to the B.C. government’s website at http://www.th.gov.bc.ca/cvse/national_safety_code.htm and examine the entire regulation, paying particular attention to section 37.15. For those who want a simplified version, the government has posted a summary on its website called “Hours-of-Service Rules—Loggers”.