Iowa House Bill HSB601

Iowa 2025-2026 Regular Session

• Introduced: 1/22/26
• Refer: 1/22/26

Caption

A bill for an act relating to the acquisition of water, sanitary sewer, and storm water utilities, including required findings by the Iowa utilities commission, the timeline for issuing ratemaking principles, and the determination of applicable ratemaking principles.

Summary

HSB601 revises Iowa law governing the acquisition of water, sanitary sewer, and storm water utilities by public utilities. It removes the current $3 million purchase-price threshold for commission review and instead requires Iowa Utilities Commission approval for acquisitions of these utilities, along with a finding that the transaction will not detrimentally affect ratepayers of either the acquired utility or the acquiring utility. If the target is a city utility, the bill also requires the city to certify compliance with specified municipal statutory requirements before the acquisition can proceed. The bill also changes how ratemaking issues are handled in utility acquisitions. It requires the commission to determine, in advance and in the acquisition proceeding itself, the ratemaking principles that will apply when acquisition costs are later included in regulated rates, and bars the commission from postponing those principles to a later case. In setting those principles, the commission must use the lesser of the sale price or the utility’s net book value, rather than the fair market value option referenced in current law, and may consider nontraditional ratemaking tools, including temporary limits on future rate increases. If the acquisition would raise the average rate base per customer for existing customers, the bill requires a minimum 10-year prohibition on consolidating the acquired utility’s rates with the acquiring utility’s rates.

Impact

The bill would amend Iowa Code section 476.84 to expand commission oversight of water, sewer, and storm water utility acquisitions and to tighten the standards governing how acquisition costs are recovered in rates. It would affect public utilities seeking to buy municipal or other non-rate-regulated water-related utilities, as well as cities that own utilities and must complete specified statutory steps before a sale. The measure would also constrain future ratemaking by requiring advance commission determinations and by limiting rate consolidation where customer rate bases would increase.

Sentiment

No committee transcript or recorded vote information was provided, so there is no direct evidence of support or opposition from hearings or floor action. Based on the bill text, the measure appears designed to protect ratepayers and provide more certainty in acquisition-related ratemaking, suggesting a consumer-protection and regulatory-oversight rationale. At the same time, the bill imposes additional procedural and substantive limits on utility acquisitions, which could draw concern from acquiring utilities and transaction participants.

Contention

The main points of contention are likely to be the removal of the $3 million threshold, the new requirement that the commission find no detrimental effect on ratepayers, and the shift from fair market value to net book value in determining ratemaking principles. Utilities and acquisition proponents may view these changes as making transactions harder to complete or less economically attractive, while consumer advocates and local governments may support them as safeguards against higher rates and unfavorable cost recovery. The 10-year ban on rate consolidation when customer rate base increases is another likely flashpoint because it restricts post-acquisition pricing flexibility.