据美国联邦公报消息，2017年8月4日美国环保署发布条例，豁免β-环糊精（Beta Cyclodextrin）、甲基醚（Methyl Ethers）作为农药助剂用于农作物中的最大残留限量。
　　
　　本次豁免申请由Lewis and Harrison, LLC公司代表Wacker Chemie AG公司提交。 新条例自发布之日起生效，征求意见截止2017年10月3日。
　　
　　部分原文报道如下：
　　
　　This regulation establishes an exemption from the requirement of a tolerance for residues of beta cyclodextrin, methyl ethers （CAS Reg. No. 128446-36-6） when used as an inert ingredient （stabilizer and solvent） in pesticide formulations applied to growing crops pre-harvest limited to a maximum concentration of 40% by weight in the pesticide formulation. Lewis and Harrison, LLC, on behalf of Wacker Chemie AG submitted a petition to EPA under the Federal Food, Drug, and Cosmetic Act （FFDCA）， requesting establishment of an exemption from the requirement of a tolerance. This regulation eliminates the need to establish a maximum permissible level for residues of beta cyclodextrin, methyl ethers that result from applications of pesticides consistent with the conditions in EPA regulations.