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Yes I do have a reference. A quick Google search will reveal other publishing of this news. Here is one of them:http://hightimes.com/news/olympics-athletes-can-smoke-weed-just-not-during-competition/
I must alert you though. I rarely site a source because most people by now consider me as a source. I've been accurately publishing as a drug expert for over 10 years. I have consulted with almost every drug expert and their lawyers for over 20 years.

Always feel free to ask for a source but feel confident if the news is being reported by me, it's 100 percent accurate. Thanks for the upvote and please follow me solarguy. Fist bump.

This issue was a big deal for Ross Rebagliati back in the 1998 games when they tried to strip him of his Gold medal. Now the guy has his own brand of Marijuana http://www.rossgold.com/