International Diatomite Producers Association
The International Diatomite Producers Association (IDPA) is a trade association representing major manufacturers of diatomaceous earth products worldwide.
Founded in 1987, IDPA is committed to the safe use of diatomaceous earth products and to advancing research and maintaining a dialogue with industry, legislators, regulatory agencies and the scientific community in support of the safety of our employees, our customers, and the communities we serve. IDPA is a nonprofit 501(c)(6) trade association managed by the Industrial Minerals Association - North America (IMA-NA) and IMA-Europe.
Official website: http://diatomite.org/