New Responsive TLV Development Process for 2023

ACGIH has updated our development process to better meet the needs of occupational and environmental health professionals. Industry professionals have the opportunity to provide comments twice per year for draft Documentation on the Notice of Intended Changes (NIC) and Notice of Intent to Establish (NIE) lists. The comment periods runs from January 1st to March 31st and July 1st to September 30th, with ratification occurring in May and November, and all changes will be posted online using Data Hub. TLV books will continue to be published at the beginning of every year. This compressed schedule will allow ACGIH scientific committees to finalize critical agents in half the time – providing critical information to the field when it is needed, while still allowing for input on all TLV changes.

Additionally, the under study list will no longer be tiered to allow chemical substances and physical agents to be added throughout the year and worked on immediately. All updates to the under study list will be reflected in ACGIH communications and on the ACGIH website.

The first comment period for the TLV development process is coming to a close on March 31st. Industry professionals have the opportunity to provide comments twice per year for draft Documentation on the Notice of Intended Changes (NIC) and Notice of Intent to Establish (NIE) lists. 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. Click here for current substances and agents list.

All comments can be submitted to the ACGIH Science Group at science@acgih.org following the process outlined on the website.