Wis. Admin. Code Public Service Commission PSC 185.32
Readings of all meters used for determining charges to customers shall be taken by the utility monthly, bimonthly, quarterly, or for such other period or in such other manner as may be authorized by law. An effort shall be made to read meters on corresponding days of each meter-reading period. The meter-reading date may be advanced or postponed not more than 10 days without adjustment of the billing period. Bills for service shall be rendered within 50 days from the reading of the meter except as may be otherwise specifically authorized by the commission. The utility may permit the customer to supply the meter readings. Meter readings supplied by the customer or third party, acceptable to the utility, shall be considered the actual reading. The utility is obligated, upon request, to obtain a final read from both the base and ROM meters when there is a change of customers. The utility shall make reasonable efforts to read the meters of customers who cannot be available during normal business hours and when there is a change of customer. The utility may make a final read through AMR technology if available.
Wis. Admin. Code Public Service Commission PSC 185.32