Non-Commercial educational stations may acknowledge contributions over the air, but they may not broadcast commercials or otherwise promote the goods and services of for-profit donors or underwriters. Acceptable "enhanced underwriting" acknowledgements of for-profit donors or underwriters may include:

(1) Logograms and slogans that identify but do not promote

(2) Location information

(3) Value-neutral descriptions of a product line or service

(4) Brand names, trade names, and product service listings.

However, such acknowledgements may not interrupt the station's regular programming.