Will I get drug tested?

So I recently started a new job. No drug test to get employed. However, a client I was assigned to is a contractor for the government.

No mention of drug tests on the job offer or contract.

What are the chances I get caught smoking pot? (Legal in my state)

usa jobs
usa jobs resume
usa hotel jobs
usajobs
usa jobs federal government
usa job in ksa
usa jobs
usa jobs login
usa jobs gov
usajobs.gov
www.usajobs.gov
usajobs.com
usajobs
usajobs.gov official