Gas standards

GS NumberGas Standard   
GS 6500.105Gas Meter Standards

Electric standards

General standards

Service Install and Meter Equipment Approval

ER NumberElectric Standard
ER 3-100-FCabinet – Current Transformer 400 A Max
ER 3-110-FCabinet – Current Transformer, 240 V, 800 A Max
ER 3-120-GCabinet – Instrument Transformer, 480 V, 400 A Max
ER 3-130-G Cabinet – Instrument Transformer, 480 V, 800 A Max
ER 3-140-I Cabinet – Instrument Transformer, 480 V, 1200, 1600 and 2000A
ER 3-150-E Cabinet – Instrument Transformer, 480V-400 A Max 1PH
ER 13-210-CMeter Installation, Pad Mount Transformer
ER 13-230-EMeter Location
ER 19-150 Service - Electric Plug In Vehicle, Sub Meter Socket Installation
ER 19-210-G Service Entrance – CATV, 1PH, 2 Wire, 120 Volts
ER 19-220-H Service Entrance – GROUP, 7 or More Positions, Socket Breaker, Combination
ER 19-225-H Service Entrance – GROUP, Multiple Position, Socket Breaker, Combination
ER 19-230-I Service Entrance – GROUP, Horizontally Ganged, 2-6 Position
ER 19-235-J Service Entrance – GROUP, 2-6 Position, Socket, Breaker Combination
ER 19-236-D Service Entrance – Indoor and Outdoor, Meter Socket and Main Breaker
ER 19-238-AService Entrance Manufactured - Mobile Home
ER 19-240-LService Entrance – Overhead, Single & Three Phase
ER 19-245-BService Entrance – Overhead, 100, 200, or 320 Amperes, Self
ER 19-255-BService Entrance – Overhead, Transformer Rated
ER 19-265-GService Entrance – Underground, 100, 200, or 320 Amperes
ER 19-266-DService Entrance – Underground, 100 OR 200 AMPS
ER 19-270-PService Entrance – Underground, 200 & 320 Amperes Service
ER 19-280-BService Entrance – Underground, Transformer Rated
ER 19-285-FService General - Residential, Commercial, Industrial
ER 19-290-CService Overhead - Attachment, Customer's Premises
ER 19-310-BService Temporary, Single Phase, 120 or 120 and 240 Volts

Have an emergency?

Natural Gas: If you smell gas, think you have a gas leak, have carbon monoxide symptoms or have some other gas emergency situation, go outside and call 911 and then our emergency number 1-800-634-3524.
Electric: For any electric emergency, including a downed power line, power outage or other electric-related situation, please call 1-800-464-7726.