1300 W. Washington Street
Phoenix, AZ 85007-2996
Master Meter Systems
In November 2018 the Corporation Commission voted to approve and adopt a new policy regarding natural and propane gas master meter systems throughout the state. The new policy requires existing master meter systems to either remain or come fully into compliance with state and federal regulations or be converted to a traditional gas system operated by a regulated public service corporation. If operators choose to come into compliance with state and federal regulations, they will have a five-year grace period during which they may not be fined for noncompliance, however, the Corporation Commission retains its authority to shut down systems that pose an immediate threat to public safety.
There are currently over 900 gas-related master meter systems throughout the state. They are run by the owners of the property on which they exist, making property owners gas operators, requiring that they comply with pipeline State and Federal regulations. Owner/Operators of master meter systems failing to operate and maintain their gas system in accordance with pipeline safety regulations may lead to potential health and safety risks. When such systems go down, critical utility services such as hot water and heat may be affected.
Information on the Commissioner's decision may be found in our November Open Meeting Highlights news release.
Read our new inspection guidelines which take effect January 1, 2019.
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What is a Master Meter System?
Arizona State Rule (http://apps.azsos.gov/public_services/Title_14/14-05.pdf) defines a Master Meter as; physical facilities for distributing gas within a definable area where the operator purchases metered gas from a public service corporation to provide gas service to two or more buildings other than at a single family residence.
What does the ACC Pipeline Safety Office inspect?
Arizona State Rule (http://apps.azsos.gov/public_services/Title_14/14-05.pdf) R14-5-207 (S): To ensure compliance with provisions of this rule, the Commission or an authorized representative thereof, may enter the premises of an operator of a master meter system to inspect and investigate the property, books, papers, business methods, and affairs that pertain to the operation of the master meter system.
As of April 27, 2001 all operators of gas distribution systems including master meter operators must have a written operator qualification plan (OQPLAN) for individuals performing covered tasks on a pipeline facility. An operator of a master meter system is that person who purchases metered gas from a public service corporation to provide gas service to two (2) or more buildings other than at a single-family residence.
The master meter operator may develop their own written OQPLAN or purchase one from an outside source. For interested master meter operators, a written OQPLAN is available at no charge from the Arizona Corporation Commission, Pipeline Safety Section, 1300 W. Washington Street, Suite 220, Phoenix, Arizona 85007.
DIMP is a regulation enacted by the Pipeline Hazardous Materials Safety Administration (“PHMSA”), effective January 1, 2012 to assure that operators of gas distribution systems (including MM operators and small LPG operators) have the necessary knowledge of their system and its operation to assure that all necessary actions are being taken to mitigate as many of the associated risks to the public as possible. Click below links for additional information:
One-day seminars addressing the responsibilities of master meter operators providing assistance in complying with the standards, regulations and reports for the State of Arizona. These seminars are presented free of charge to master meter operators.
This form can now be filled in and emailed to: email@example.com.
Operators of a master meter system will file an annual report with the Commission on Commission Form MM-04, "Annual Report for Calendar Year 20___, Small Operators of Gas Distribution System," incorporated by reference, and copies available from the Office of Pipeline Safety, 1300 W. Washington Street, Suite 220, Phoenix, AZ 85007. This report will be filed with the Office of Pipeline Safety not later than April 15 for the preceding calendar year.