Jost Chemical products conform to American Chemical Society, 9th Edition (ACS), United States Pharmacopeia XXV (USP), Food Chemical Codex IV (FCC) specifications where applicable and European Pharmacopeia (EP) specifications.The plant is designed for and operated under Good Manufacturing Practices (GMP) and is registered with the FDA. Specific productlead levels available as they pertain to California Proposition 65. All products are certified to meet Kosher requirements.