I have an upcoming interview and the meeting schedule indicates that the dress code is "business casual." How should I arrive to ensure that I am dressed appropriately for the interview?
Business Casual could mean different things depending on where you are located and what business sector you are in.
From the wikipedia page on business casual:
As has been discussed in How to select interview attire for a technical job interview? for some situations, over dressing can be as bad for your interview chances as under dressing, but Business Casual does gives you a pretty good idea of what to expect.
Business casual is basically a suit with no tie or something similar.
I would turn up in a suit you can then take of the tie and jacket if you feel it's appropriate. It's hard to overdress for an interview.