(ICIS Chemical Business) U.S. dietary supplement manufacturers will finally be required to adhere to current Good Manufacturing Practices (cGMPs) this summer. It is a year since the US Food and Drug Administration (FDA) issued its final rule on the subject and 14 years since the US Dietary Supplement Health and Education Act of 1994 (DSHEA) first authorized the cGMPs. Read more at … ICIS Chemical Business.