When will the latest Documentation be available for a new TLV or BEI?
TLV/BEI Notice of Intended Changes (NIC): When the full Committee accepts the draft Documentation and its proposed TLV or BEI, the Documentation and proposed values are then recommended to the ACGIH Board of Directors for ratification as an NIC. If ratified, each proposed TLV or BEI is published as an NIC. The proposed TLV or BEI is considered a trial limit by ACGIH for approximately one year following the NIC ratification by the ACGIH Board of Directors. During this period, interested parties, as well as ACGIH members, are invited to provide data and substantive comments, preferably in the form of peer-reviewed literature, on the proposed TLVs or BEIs contained in the NIC. TLV/BEI and Adopted Documentation: If the Committee neither finds not receives any substantive data that change its scientific opinion regarding an NIC TLV or BEI, the Committee may then approve its recommendation to the ACGIH Board of Directors for adoption. Once approved by the Committee and subsequently ratified
