File this one under "They've Got to be Kidding"
The February update for the Napa Valley Marathon was just published (2/19/2008)
The update details that they will be enforcing the USATF ban on headphones/mp3 players.
NO HEADPHONES / MP3 PLAYERS
The 2008 Napa Valley Marathon is the RRCA National Marathon Championships and, in keeping with RRCA guidelines and USATF rules of competition, headphones are prohibited on the course.
USATF Rule 144.3(b): The visible possession or use by athletes of video or audiocassette recorders or players, TV's, CD or DVD players, radio transmitters or receivers, mobile phones, computers, or any similar devices in the competition area shall not be permitted.
Athletes carrying these devices will be asked to surrender them to a race official prior to the race. Surrendered devices may be picked up at the finish line area following the race.
Wow, I might be "asked to surrender" my iPod? Give me a break Napa Valley Marathon - your rules need some serious revising.