Essentially, once EPA has found sufficient evidence of risk to justify initiation of cancellation proceedings, the burden is on the proponent of continued registration to demonstrate that the risk is minimal or that the benefits of use outweigh the risks.

• 一旦环境保护局发现足够的危害证据，撤销注册的诉讼就开始了，继续注册的辩护人就有责任证明，危害是最小的，或者证明使用这种杀虫剂的好处大于它的危害。