Optional practice pack
The checker, guides and existing save, share, print and record-export features remain free. The optional practice pack is a separate one-time educational download sold by Project Velar SRL, publisher of PassPull. Availability and the price are shown on its product page; any applicable tax is shown at checkout.
One purchasing instructor or individual may edit and print the pack for their own classes or crew. Resale and public distribution of the complete pack or answer key are excluded. These are synthetic exercises, not CE credit, independent certification or approval of a real installation. Review the assumptions and adopted code before teaching or field use.
Return from completed Stripe checkout to download the files. Keep your files and receipt. For a failed download, contact support@passpull.com with the receipt reference; never send card details. For a refund request, contact the same address within 14 days of purchase. Your statutory rights are unaffected. Do not purchase again to fix an interrupted download.
Meaning of a result
PASS refers only to the checks implemented for your entered assumptions. It is not an inspection guarantee, permit, engineering stamp, complete circuit design, or authorization to install. A result can be wrong if the inputs, code edition, or installation assumptions are wrong.
The supported numbers were checked against NEC 2023 on September 26, 2026. Validate the adopted code, equipment ratings, and installation before relying on a result.
Your installation
You are responsible for verifying conductor markings, equipment temperature ratings, circuit arrangement, continuous-load treatment, ambient conditions, adopted code edition, and local amendments. Have work performed and reviewed by appropriately qualified people.
The supported catalog and excluded checks are listed in the calculation method. Do not substitute an unsupported cable, insulation, raceway, or conductor construction with a similar-looking option.
Availability and corrections
The core checker is free and provided without a promise of uninterrupted availability or error-free results. Keep your own records. Saved setups are stored locally, and browser data can be cleared or lost.
If you find a discrepancy, stop relying on the affected result and report the exact inputs and reference to support@passpull.com. Do not include confidential job or customer details.
Independent tool
PassPull is not affiliated with or endorsed by NFPA. National Electrical Code and NEC are NFPA trademarks. Our summaries do not replace the published code.