
Of the school programs assessed, 23 have eased sanctions for athletes who test positive for marijuana. By contrast, most school programs continue to impose significant punishments for students who test positive for the use of performance enhancing drugs.
Similarly, the NCAA in 2014 amended its policies to lessen penalties for those athletes who test positive for recreational substances while keeping in place longstanding punishments for the use of performance enhancing substances.
Source: http://www.norml.org