Bulletins after 423 were expanded to a broader usage and are addressed as EMCOMM.
EMCOMM bulletins 001-020 were sent parallel to the RACES Bulletins in 11996 and EMCOMM bulletin 021 was the first on 4/1/96 with the cessation of the RACES bulletins as such.
Reason: over time it became apparent that the term "RACES" does not fully communicate as to the nature of the Emergency Communications units in the 1990's. While RACES is still an important element of Amateur Radio, there are expanded uses of Amateur Radio that transcend some of the 40 to 50 year old concepts of what "RACES" is or was.
It was discovered that using the term "Emergency Communications Unit" or EMCOMM was generic and better understood. California decided to name it's state OES EMCOMM unit as the Auxiliary Communications Service.
Packet stations find the on-going bulletins addressed as EMCOMM@ALLUS $EMCOMBUL.###