Click on the document to view and/or download for information related to blackflow and cross connections. The web link below identifies the latest approved parts that can be purchased to meet blackflow and cross connect requirements.
Click on the link listed here for the USC Foundation for Cross-Connection Control and Hydraulic Research: https://fccchr.usc.edu/list.html
2023 Certified Backflow Testers List for members.
Click on the links below for the documents.