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Safety & official resources

Use the directory to prepare questions. Use these external authorities to check safety guidance and consumer information.

Links reviewed September 24, 2026. Inclusion does not mean these organizations endorse this directory.

Government fire safety

Government consumer and wildlife resources

Industry education — not government agencies

CSIA — certification information

Understand credential programs. Confirm a named technician’s current credential directly with the issuer; a company profile is not independent verification.

Property-specific rules and appliance instructions

Use your city or county building department for questions about the actual proposed work and your address. Requirements vary; a national service page cannot establish a permit requirement. Ask the contractor which appliance manual, product instructions and applicable local requirements govern its proposal.

Our editorial policy explains how sources are used. The disclaimer describes the limits of the directory and tools.