The National Type Evaluation Program — the certification process every commercial scale in the US must pass to be used for legal-for-trade transactions.
## What is NTEP? **NTEP** is a program of the National Conference on Weights and Measures (NCWM). NTEP certifies that a specific scale system (load cells + indicator + software) meets the accuracy and legal-for-trade requirements of NIST Handbook 44. ## Why operators care - A non-NTEP scale **cannot be used to buy or sell by weight** in commerce. - State Weights & Measures inspectors verify NTEP at annual inspections. ## How WeighPay handles NTEP WeighPay is paired with NTEP-certified hardware (Rice Lake, Cardinal, Mettler Toledo, etc.) — the ticketing software itself does not affect NTEP certification of the scale.