State law requires that each gas meter used in Massachusetts be tested for accuracy by the DPU. (See G.L. c.164, § 103: "Accuracy of meters; records." ) After a gas meter has passed the test, it is stamped to show that the meter has been approved for use. New meters are tested on a sample basis. Meters which have been in service are individually tested.

A meter may remain in use for up to seven years. After seven years' use, it must be replaced by a meter that has been recently tested and approved. ( See G.L. c.164, § 115A: "Replacement of gas meters." ) A meter which has been removed must be tested and approved again before it is put back into service.


This information is provided by the Department of Public Utilities

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