Persons that sell, rent, install, service, or repair commercial weighing and measuring devices are required to be licensed with the Division of Measurement Standards (DMS). The lawful licensing of repairpersons by DMS assists with the integrity of the repair industry and traceability of their standards to NIST. Repairmen must report their work to county weights and measures officials. This allows for efficient review of their work to validate the accuracy of that work and to verify the appropriate use of devices.
For a complete listing of registered service agents visit https://www.cdfa.ca.gov/dms/programs/rsa/rsalistings/rsaListings.html