Possession of prohibited substances or buying them can carry a prison sentence.

持有或购买违禁用品会被判刑。

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Land to be certified according to NOP must be managed according to the standard, and must not have received prohibited substances during 3 years before the first organic harvest.

按NOP规定，要经过 认证的土地须按标准经营，而且在第一次有机农产品成熟前的3年（的时间）内不能使用被禁止的物质。

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Every year the World Anti-Doping Agency publishes a list of prohibited substances and methods, divided into those prohibited at all times and those outlawed only during competitions.

每年世界反兴奋剂组织都会公布一系列(体育比赛中的)禁用物品以及禁用方法，并把它们分为任何时候都不能使用和在比赛时不能使用两种情况。

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Tennis complies with the World Anti-Doping Authority's code, which recommends a two-year ban for possession of prohibited substances.

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Like the proposed CW ban, it is supposed to prevent any nation from obtaining and stockpiling quantities of the prohibited substances.

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"The doctor assured me that no prohibited substances were in the medication, " Koubek wrote in his diary on the www.tennisweb.at website.

BBC: Koubek claims he did not knowingly take banned substances