Persons that sell, rent, install, service, or repair commercial weighing and measuring devices are required to be licensed through the State Division of Measurement Standards. The lawful licensing of repair people assists with the integrity of the repair industry. Agents must take and pass a written exam on the laws and regulations governing weights and measures. Repairman must report their work to county weights and measures inspectors. This allows for efficient review of their work to validate the accuracy of that work and to verify the appropriate use of devices.