If your PRX piece has anything in it that may be considered indecent by the FCC, it's important to note that in the Content Advisories box on the Basics page when you are creating a piece. You have then warned stations to completely your preview your piece before they buy or air it. No station wants a hefty fine.
List whether or not you have already blanked the content, and provide the time that the content appears in your piece. For example: 30:14 BLANK "..that doesn’t fix a ******* thing"
Here is general guidance on the FCC and indecency issues from our attorneys Garvey, Schubert, Barer: PDF. It is not an updated document regarding the latest court rulings and FCC decisions, but should provide valuable context.
When in doubt, consult with your attorneys and/or let stations know in the Content Advisories box so that they are fully informed.