No different than here in BC.  I put myself through college working night shifts as a welder.  I was the only guy that didn't spark up at the dinner break on a shift of 8 people.  I used to put orange traffic cones around my work area and tell the rest of the shift I would break one of their limbs if they drove a forklift inside the cones.  The alternative was getting run over while my mask was down.   This was 25 years ago. Legalization has nothing to do with job site usage.