# PSC 134.14 Adjustment of bills.

**Citation:** Wis. Admin. Code § PSC 134.14  
**Type / status:** regulation / current  
**Agency:** Public Service Commission of Wisconsin  
**Effective:** 1989-12-01  
**Published:** Not stated

Complete current PSC 134.14 from official Wisconsin Legislature sources (gas-utility-service).

## Document text

PSC 134.14 Adjustment of bills.

(1) Whenever a meter is found to have a weighted average error of more than 2% fast as tested in the manner specified in s. PSC 134.28, a recalculation of bills for service shall be made for the period of inaccuracy assuming an inaccuracy equal to the weighted average error. Weighted average error refers to 80% of the open rate plus 20% of the check rate. The recalculation shall be made on the basis that the service meter should be 100% accurate.

(2) If the period of inaccuracy cannot be determined, it shall be assumed that the full amount of inaccuracy existed during the last half of the period since the previous test was made on the meter; however, the period of accuracy shall not exceed one-half the required test period.

Note: If the meter test period is 15 years and the meter had been in service for 16 years, the period of accuracy shall be 7½ years, and the period of inaccuracy shall be 8½ years.

(3) If the average gas bill of a customer does not exceed $10 per month over the refund period the monthly consumption of which the refund is calculated may be averaged.

(4) If the recalculated bills indicate that more than $1 is due an existing customer or $2 is due a person no longer a customer of the utility, the full amount of the calculated difference between the amount paid and the recalculated amount shall be refunded to the customer. The refund to an existing customer shall be a credit to the customer’s current bill. If the amount of the credit is greater than the current bill, the amount in excess of the current bill shall, at the discretion of the customer, be made in cash or as credit on future bills. If a refund is due a person no longer a customer of the utility, a notice shall be mailed to the last known address, and the utility shall upon request made within 3 months thereafter refund the amount due.

(5)

(a) Whenever a meter with a rated capacity of 400 cubic feet per hour (CFH) or more is found to have a weighted average error of more than 2% slow, the utility shall bill the customer for the amount the test indicates has been undercharged for the period of inaccuracy, which period shall not exceed the last 2 years the meter was in service unless otherwise ordered by the commission after investigation. No back billing for an inaccurate meter will be sanctioned for the following:

1. The customer has called to the company’s attention his or her doubts as to the meter’s accuracy and the company has failed within a reasonable time to check it.

2. The rated capacity of the meter is 399 cubic feet per hour (CFH) or less.

3. The amount of the backbill is less than $50.

(b) Backbilling shall be required for any size meter for any of the following circumstances.

1. The meter did not register.

2. An incorrect correction factor or meter constant was applied.

3. The meter or service were tampered with.

4. An incorrect index or gear ratio was applied.

5. Meters were switched between customers.

6. Rates were misapplied.

(6) A classified record shall be kept of the number and amount of refunds and charges made because of inaccurate meters, misapplication of rates, and erroneous billing. A summary of the record for the previous calendar year shall be submitted to the commission by April 1 of each year.

## Provenance

- Official: Yes
- Source: <https://docs.legis.wisconsin.gov/document/administrativecode/PSC%20134.14>
- Source ID: `wi-legislature-pipeline-corpus`
- SHA-256: `db13d1b3120dcb0f13c5c9fe1c288f8466cdd8cd353ed2562d0373a2e421eae2`
- Retrieved: 2026-08-12T06:25:04.554Z
- Exported: 2026-08-24T01:08:40.898Z
- Document slug: `wi-psc-134-14`

### Source metadata

```json
{
  "jurisdiction": "US-WI",
  "code": "Wisconsin Administrative Code",
  "chapter": "PSC 134",
  "section": "PSC 134.14",
  "category": "gas-utility-service",
  "currentThrough": "2026-08-01",
  "currentnessBasis": "Official publisher states the entire administrative code is current and updated on the first day of each month.",
  "legalScope": "This completeness-verified corpus contains every current section of Wisconsin Administrative Code Chapters PSC 133, 134, and 135, plus complete Wis. Stat. §§ 196.745 and 182.0175. Chapter PSC 135 is the dedicated gas-safety chapter. Chapters PSC 133 and 134 are included because the Wisconsin PSC identifies all three chapters as requirements used in pipeline-safety inspections; they also contain broader construction, siting, utility-service, billing, metering, and customer provisions.",
  "applicabilityCaveat": "Applicability depends on Wisconsin PSC jurisdiction, operator and facility type, intrastate or interstate status, gas-public-utility status, project thresholds, activity, exemptions, waivers, Commission orders, federal preemption, and the specific provision. Wis. Stat. § 196.745 excludes propane distribution systems from the PSC pipeline-safety program, while the one-call law reaches transmission facilities beyond natural-gas pipelines.",
  "incorporationCaveat": "Chapter PSC 135 adopts and supplements federal minimum pipeline-safety standards, principally 49 CFR Parts 191, 192, 193, and 199. The source also cites statutes, administrative rules, Commission forms and orders, and private technical standards. References are retained as metadata; incorporated material is not reproduced and its edition, legal effect, and licensing must be verified at the referenced source.",
  "rightsCaveat": "Official Wisconsin Legislature and Public Service Commission text is preserved with attribution and source hashes. Public availability does not establish a blanket license for site presentation, agency marks, annotations, forms, or incorporated federal and privately authored standards; downstream redistribution requires separate rights review.",
  "history": "History: Cr. Register, 1-2-56; r. and recr. Register, February, 1959, No. 38, eff. 3-1-59; am. (1), (2) and (4), renum. (5) to be (5) (a) and am., cr. (5) (b), Register, November, 1989, No. 407, eff. 12-1-89.",
  "references": [
    {
      "citation": "PSC 134.28",
      "referenceType": "wisconsin-administrative-code",
      "url": "https://docs.legis.wisconsin.gov/document/administrativecode/PSC%20134.28",
      "linkBasis": "official-publisher-supplied exact-citation link"
    },
    {
      "citation": "Register, 1",
      "referenceType": "administrative-register",
      "url": "https://docs.legis.wisconsin.gov/document/register/1/B/toc",
      "linkBasis": "official-publisher-supplied exact-citation link"
    },
    {
      "citation": "Register, February, 1959, No. 38",
      "referenceType": "administrative-register",
      "url": "https://docs.legis.wisconsin.gov/document/register/38/B/toc",
      "linkBasis": "official-publisher-supplied exact-citation link"
    },
    {
      "citation": "Register, November, 1989, No. 407",
      "referenceType": "administrative-register",
      "url": "https://docs.legis.wisconsin.gov/document/register/407/B/toc",
      "linkBasis": "official-publisher-supplied exact-citation link"
    }
  ],
  "sourceCollection": "wi-legislature-psc-code",
  "region": "WI"
}
```