The following schedule is required for testing demand meters:

1. (1) Block interval demand-registers-equipped watt-hour meters.

   1. (A) Meters with surge-proof magnets - 12 years.
   2. (B) Meters without surge-proof magnets - 8 years.
2. (2) Block interval graphic watt-hour demand meters - 2 years.
3. (3) Lagged demand meters - 8 years.

4. (4) Pulse recorders and pulse-operated demand meters in combination with pulse-initiator-equipped watt-hour meters - 2 years. If a comparison is made between the meter registration and the recorder registration each billing period, and the recorder registration agrees within one percent (1%) of that registered by the associated meter, the schedule for pulse recorders and pulse-operated demand meters should be as indicated in (A) and (B) of this paragraph. If recorder meter registration checks do not agree within one percent (1%), the demand metering equipment should be tested.

   1. (A) Meters with surge-proof magnets - 16 years.
   2. (B) Meters without surge-proof magnets - 8 years.

Amended at 10 eff 6-25-93