81.20 - Investigation of public service companies.
- 81.20.010 - Definition.
- 81.20.020 - Cost of investigation may be assessed against company.
- 81.20.030 - Interest on unpaid assessment -- Action to collect.
- 81.20.040 - Commission's determination of necessity as evidence.
- 81.20.050 - Order of commission not subject to review.
- 81.20.060 - Limitation on frequency of investigations.