No, they don't. Most UCM students haven't used cannabis (marijuana) in the past year, and most have never used it.1 Don't use? You're in the majority.
No. Cannabis is currently a federally restricted drug.2 UCM receives federal funds to support the work we do, including federal financial aid that students receive to help cover the cost of school. Colleges and universities who receive federal funds are not allowed to permit the use or possession of cannabis (marijuana) or marijuana accessories on campus property3 - that includes parking lots and campus sidewalks. It's also prohibited by Missouri state law4 and a Warrensburg ordinance.5
Having a medical marijuana card (or other written permission from a healthcare provider) does not change federal law or UCM's responsibility to follow it. You cannot use cannabis (marijuana) on campus even if you have a medical marijuana card.
The safest choice is always: don't use.
No matter your opinions about it being safe or natural, cannabis (marijuana) IS a drug. It affects your body and your mind, and not always in predictable ways.
Some ways to be safer:
References