據(jù)了解，磷酸鈣鹽可作為殺菌劑用于土豆收獲后處理，還可作為植物系統(tǒng)獲得抗病性（SAR）誘導(dǎo)劑。
本次豁免申請由Verdesian Life Sciences, LLC.,公司提交。新條例自發(fā)布之日起生效，征求意見截止2018年3月27日。
部分原文報(bào)道如下：
This regulation establishes an exemption from the requirement of a tolerance for the calcium salts of phosphorous acid. Verdesian Life Sciences, LLC., submitted a petition to EPA under the Federal Food, Drug, and Cosmetic Act （FFDCA）。 This regulation eliminates the need to establish a maximum permissible level for residues of calcium salts of phosphorous acid under FFDCA when used in accordance with the terms of the exemption.
