N.M. Admin. Code § 17.6.450.6
The purpose of NMPSC Rule 450 [17.6.450 NMAC] is to set forth the Commission's policy and requirements concerning Class I and Class II transactions by public utilities under the Commission's jurisdiction. The intent of the Commission in promulgating NMPSC Rule 450 [17.6.450 NMAC] to assure reasonable and proper utility service at fair, just, and reasonable rates; to require reasonable access to the books and records of a utility and its affiliates so that such an assurance can be made; to assure that appropriate cost allocations are made; and to assure that no cross-subsidization occurs between the utility and an affiliated interest. It is not the Commission's purpose or intent to approve, disapprove, or regulate any specific nonutility business or venture conducted by any utility's affiliates.
N.M. Admin. Code § 17.6.450.6