Purpose: To modify the current Verified Conformity Assessment Program Policy to include Water Meters to the list of covered devices. Justification: California has reported a high failure rate related to the performance of NTEP certified water meters. The Verified Conformity Assessment Program is designed to require additional in-house testing and document verification to show proper control of design changes and component purchasing guidelines. By adding these devices to the Verified Conformity Assessment Program, NTEP would perform audits to ensure continued compliance. This will result in fewer failures during the initial verification inspection.
Item Under Consideration: Amend Pub 14 Administrative Policy as follows.
21.1.3.NTEP Verified Conformity Assessment Program Procedures
Many NTEP certified devices must meet NIST Handbook 44 requirements for influence factors. It is not possible to verify these requirements during the Initial Verification in the field. Therefore, manufacturers of metrological devices (instruments) and/or components (modules) which are subject to influence factors, as defined in NIST Handbook 44 identified in paragraphs 21.1.3.1., and 21.1.3.7, must have a Verified Conformity Assessment Program (VCAP) in place to ensure that these metrological devices and/or components are produced to perform at a level consistent with that of the device and/or component previously certified. The Verified Conformity Assessment Program audit will be at one or more sites as required to verify compliance. For weighing devices that are subject to influence factors, and other devices identified in paragraphs 21.1.3.1., and 21.1.3.7, NTEP will require an initial on-site audit of the manufacturer’s quality system and on-site random testing and/or review of a production device(s) (instrument(s)) by the Registrar to verify that all items listed below are currently implemented and functioning to verify compliance to the appropriate sections of NIST Handbook 44 .
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