Lois from Fayetteville. I have a dispute stalled because the utility is claiming the tariff language is genuinely ambiguous about which rate class applies to my client's operation. They are not saying my client is wrong, they are saying the tariff could be read either way. I have never hit this before. What do you do when the tariff itself is the problem?
Rate class dispute — utility says tariff is ambiguous, now what
Karl from Lincoln. File for an informal ruling with the state PUC. Most commissions have a process for issuing guidance on tariff interpretation questions. It is not a formal complaint, just a request for clarification. The utility has to respond on the record.
Larry from Baton Rouge. I had this happen once. The ambiguity was real — two schedules that both seemed to describe my client's operation. The PUC ruled in our favor because we demonstrated that the utility had applied the higher-cost schedule to other comparable businesses in the territory, which showed their own internal interpretation.
Larry that is very useful. So their own past practice can be evidence?
Yes. Utilities are supposed to apply tariffs consistently. If you can show they classified similar businesses differently it undercuts their ambiguity argument significantly.
Karl again. Also look at the tariff's legislative history if it is accessible through the PUC docket. Sometimes the original filing includes staff comments or commission orders that clarify intent.
Earl from Chattanooga. Document every communication with the utility on this in writing. If it goes to a formal proceeding you want a clear record that you raised the issue, they claimed ambiguity, and what they said at each step.
All of this is helpful. I was feeling stuck but there are clearly more levers to pull than I realized.