Official sources
Everything on HamTestHub is based on the following official and primary sources.
Question pools
- NCVEC: 2026-2030 Technician question pool (released December 18, 2025; errata February 19, 2026; diagrams T-1, T-2, T-3)
- NCVEC: 2023-2027 General question pool (6th errata February 4, 2026; diagram G7-1)
- NCVEC: 2024-2028 Amateur Extra question pool (4th errata February 4, 2026; diagrams E5-1 through E9-3)
FCC rules and licensing
- 47 CFR Part 97: Amateur Radio Service (eCFR)
- FCC Amateur Radio Service page
- FCC Universal Licensing System (ULS)
- FCC CORES (get an FRN)