Alaska's Administrative Code prohibits cross-connections....Title 18, Chapter 31, Section 220. Plumbing
Arkansas Dept. of Health, Cross-Connection Control for Public Water Systems, ...City & Town Magazine
Idaho Rules for Public Drinking Water Systems.........Includes backflow prevention requirements.....
INDIANA CODE Title 16, Article 41, Chapter 24. Health, Sanitation, and Safety: Water Supplies
Michigan SDWA Part 14 Cross-Connections.................Oakland Univ.
Michigan Safe Drinking Water Act...Index of Parts..........Oakland Univ.
CROSS-CONNECTION RULES MANUAL, 2nd Ed.11/93 (with 11/95 update) Michigan Dept. of Environmental Quality, (formerly Public Health)
An Explanation of the Michigan Part 7 Plumbing Code Amendments related to backflow
Michigan Part 7 Plumbing Code Amendments related to backflow
Safe Drinking Water For Minnesotans
Cross-Connection Control Definitions.....Ohio EPA
Cross-Connections Prohibited .....Ohio EPA
Cross-Connection Control...Where Protection is Required .....Ohio EPA
Cross-Connection Control Types of Protection Required....Ohio EPA
Device Testing Responsibilities.....Ohio EPA
Cross-Connection Violations......Ohio EPA
Ohio EPA DDAGW Rules and Regulations
Frostproof Yard Hydrants......Ohio EPA
Praire Water News -- Protection of Rural Drinking Water Pipelines..Saskatchewan Water