What was the Bill that became law on School House Rock ';I'm Only a Bill';.?

The answer is in the video go to youtube do a search....What was the Bill that became law on School House Rock ';I'm Only a Bill';.?
school buses were stopped at rail road crossing..What was the Bill that became law on School House Rock ';I'm Only a Bill';.?
there really wasn't a title for that bill,
The song doesn't actually say, but the animation depicts people thinking school buses should stop at railroad tracks.