Iowa Code § 476.80: Additional requirements.

A public utility which engages in a systematic marketing effort as defined by the commission, other than on an incidental or casual basis, to promote the availability of nonutility service from the public utility shall make available at reasonable compensation on a nondiscriminatory basis to all persons engaged primarily in providing the same competitive nonutility services in that area all of the following services to the same extent utilized by the public utility in connection with its nonutility services:

1. Access to and use of the public utility’s customer lists.

2. Access to and use of the public utility’s billing and collection system.

3. Access to and use of the public utility’s mailing system.