OpenFirehouse is open source under AGPL v3. Your department's tier is set by three objective size thresholds — fill in your numbers and the tier is shown live as you type.
Fill in the three size metrics above and your tier appears here.
If your department's size crosses a tier threshold during your license term, you must re-attest within 60 days — see EULA section 2 (Re-attestation). Materially misrepresenting size at signup voids the license and incurs back-fees per EULA section 2 (Misrepresentation).