据美国联邦公报消息，2019年8月21日，美国环保署发布2019-17993号条例，豁免C1-C4直链和支链烷基d-葡萄糖醇二氢烷基醚（AD-GDAE）簇（C1-C4 linear and branched chain alkyl d-glucitol dianhydro alkyl ethers （AD-GDAE） cluster）内农药惰性成分的残留限量。

　　新条例于2019年8月21日生效，有关人员于2019年10月21日之前提交意见。

　　部分原文报道如下：

　　This regulation establishes exemptions from the requirement of a tolerance for residues of pesticide inert ingredients within the C1-C4 linear and branched chain alkyl d-glucitol dianhydro alkyl ethers （AD-GDAE） cluster. These exemptions are being established with the following terms: When used as an inert ingredient （solvent, co-solvent, viscosity modifier and adjuvant） in pesticide formulations applied to growing crops and raw agricultural commodities after harvest, on animals, and in antimicrobial formulations applied to food-contact surfaces in public-eating places, dairy-processing equipment, and food-processing equipment, and utensils, and in antimicrobial formulations used for dairy processing equipment, and food-processing equipment and utensils. Exponent, Inc., on behalf of Croda, Inc., 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 C1-C4 linear and branched chain alkyl d-glucitol dianhydro alkyl ethers cluster when used in accordance with the terms of these exemptions.