The First Comment Period of 2023 is Now Open!


As we first announced last year the first of two comment periods for 2023 are now open. ACGIH is proud to offer this latest change to our process to allow us to be more responsive to the needs of the occupational health field. All substances that are on the NIC currently will have the opportunity to be adopted by the Board of Directors this summer and are available on our website via Data Hub and in the Publications Store. New substances include endotoxins, triclosan, formic acid and methyl ethyl ketone. All comments can be submitted to following the process outlined on the website.

Click here for 2023 NICs and Adopted substances listing.