The Enviromental Resources Training Center (ERTC) will be having a Backflow class at Local 137 March 7-10, 2023. Please visit the link below for more information or to register. Local 137 has no involvement other than to host the class.
www.siue.edu/ertc/cross_connection_control.shtml
https://www.siue.edu/ertc/revised%20ccc%20WORKSHOPS%202017.pdf