The Underwriting Laws define advertisements as program material broadcast “in exchange for any remuneration” and intended to “promote any service, facility, or product,” of for-profit entities.4 Section 399B(b)(2) specifically provides that noncommercial educational stations may not broadcast advertisements.5 Although contributors of funds to such stations may receive on-air acknowledgements of their support, the Commission has held that such acknowledgements are for identification purposes only, and must not promote the contributors’ products, services, or businesses.6 Specifically, such announcements must not contain comparative or qualitative descriptions, price information, calls to action, or inducements to buy, sell, rent, or lease.7