Must an underwriting spot include language specifically relating to its sponsorship?

Depending on its placement and how the spot is integrated with the rest of the program’s packaging, PBS may require the underwriting message to include some introductory language (“preamble”) such as “Funding for this program has been provided by.”   Sometimes a statement at the end of the spot serves the same purpose, e.g., “Microsoft, proud to support NOVA on PBS,” however there may be exceptions, as determined by PBS, should a program have both national and local sponsors secured.  We also note that the FCC has commented on the omission of such language as being a factor in some enforcement decisions.