ACGIH’s Board of Directors has ratified the 2021 Threshold Limit Values (TLVs) for Chemical Substances and Physical Agents and Biological Exposure Indices (BEIs). The Board also approved recommendations for additions to the Notice of Intended Changes (NIC)
. For a listing of the substances that were acted upon, click here
. The complete Annual Reports are online at the ACGIH® Online Publications Store
to view press release.