Are you a smoker? If you are, find another transport job.

Transporting bulk liquid has its own set of challenges different from general cargo.
You think you have what it takes to be DG Class 3 Driver? Aware of the occupational hazard and the risk? Personally, I'd rather not.
These companies have very strict policies and demand high discipline and rule adherence. They usually recruit drivers with some experience but if you think you have what it takes to be one, no harm in contacting them.

For starters, here's one.
https://shazimantransport.com/
https://shazimantransport.com/career/

Good luck!