Sources and Fact-Checking

This page lists every public document behind the facts on this site, grouped by topic. Each entry names the publisher, the document title, and the date it was checked.

The documents come from government offices, utilities, standards bodies, insurance regulators, insurance research groups, and manufacturers. Time-sensitive facts, such as insurance rules and code editions, get rechecked on a set schedule.

Each content page closes with a short note that counts its documents and links back here, so the full record sits in one place.