(1) A supplier shall include in its license application and in its annual reports sufficient documentation to substantiate any claims made to customers in advertising, marketing, promoting, or representing that electricity or natural gas purchased from the supplier is environmentally beneficial, environmentally benign, preserves or enhances environmental quality, is produced primarily with renewable energy sources, or is produced with specific resources or technologies.

(2) The commission may, on its own motion or in response to a complaint from a customer or another supplier, initiate a proceeding to investigate any claims made by a supplier in advertising, marketing, promoting and representing its services to customers. On determining that a supplier's claims are misleading, deceptive, false or fraudulent, the commission may apply appropriate penalties, including license revocation, pursuant to 69-4-408 and 69-3-1405, MCA.

(3) Unregulated supply affiliates of former vertically integrated, regulated public utilities may not refer to, or imply any association with, the reliability, safety, quality, value, history, or economic benefits of service formerly provided by the vertically integrated, regulated utility business when advertising, marketing, promoting or representing unregulated electricity or natural gas supply and/or retail energy services to customers in the service area of the former vertically integrated, regulated public utility.