Every listing is sourced, every verified badge is a registry cross-reference, and the gaps are disclosed. Here's the full method.
| Source | What it provides | Verification status |
|---|---|---|
| California CDPH Trauma Scene Waste Management Practitioners registry (public PDF) | Company, city, phone, TSW registration number | Verified — official state registry |
| Florida DOH trauma scene cleanup provider list (public, county-organized) | Company, county/city, phone, DOH ID | Verified — official state list |
| Arizona ADEQ biohazardous medical waste transporter registry | Company, city, TR number (biohazard-cleanup subset only) | Verified — official state registry |
| Franchise location rosters (companies' own public locator pages) | Branch name, city | Unverified |
| Search-listing discovery (companies ranking organically for cleanup queries, cross-checked against their own websites) | Company, website, service-area signal, phone where published | Unverified |
A verified badge means we found the company on the named official state registry on the date shown on its profile (currently July 2026 for all verified listings). It is a license cross-reference at a point in time — not an endorsement, not a quality rating, and not a guarantee the registration is still current when you read this. Confirm current status with the issuing agency before hiring.
Corrections: use the claim form — a human reads every submission.