(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 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 69-3-1405, MCA.