How to read the source list
Each guide lists the sources supporting its most important factual statements. We favor official agencies, licensing authorities, public programs, standards, and manufacturer instructions appropriate to the exact context.
The scope note explains what a source can support and where it stops. For a provider, property, vehicle, patient, or facility decision, verify the current record directly.
Current source pack
- Utilities and major systems after an emergencyAmerican Red Cross
Immediate utility safety and qualified-inspection boundaries.
- Frozen pipes guidanceAmerican Red Cross
Freeze prevention and cautious response; no open-flame or hazardous repair advice.
- 811 Before You DigCommon Ground Alliance
Utility-location education before excavation; not a substitute for local permits.