The Approved Product (AP) Seal by the Art and Creative Materials Institute (ACMI) identifies art materials that are certified in a toxicological evaluation by a board certified toxicologist to contain no materials in sufficient quantities to be toxic or injurious to humans, including children, or to cause acute or chronic health problems. These products are certified by ACMI to be labeled in accordance with the chronic hazard labeling standard, ASTM D4236, and the Federal Hazardous Substances Act (FHSA), including the U.S. Labeling of Hazardous Art Materials Act (LHAMA).