Such barriers are particularly pronounced in the US, where Congress oversees the legal framework within which federal regulatory agencies – such as the Environmental Protection Agency and the Food and Drug Administration – operate. Not only do the US administration and its federal agencies have to accept that a safety standard established and tested in Frankfurt or Athens is equivalent to its US counterpart; congressional committees must agree.
这类壁垒在美国尤为明显，美国国会监督着法律框架，而法律框架约束着监管机构——如环境保护署和食品药品管理局——的行为。不但美国政府以及联邦机构必须同意在法兰克福或雅典建立并接受检验的安全标准在美国同样适用；其国会委员会也必须如此。至于欧盟，它必须重新考虑转基因食品政策等问题。