On February 3, 2021, in Cargo Systems Messaging Service (CSMS) #46044069, U.S. Fish and Wildlife Service (FWS) announced that implementation of the FWS Message Set in the Automated Commercial Environment (ACE) is delayed until June 2021. This message set will be required for FWS regulated commodities. A CSMS will be issued when the specific date for mandatory submission is set.
The FWS Message Set is currently available for filers, and FWS recommends that filers submit if ready. Implementation was previously delayed until January 2021, and then to March 2021.
CSMS #46044069 can be found here: