In more casual geographic locations and departments, business casual is acceptable, but stay on the formal side, and conservative. Men can wear dress slacks with a shirt and tie (skip the jacket), dark socks and dress shoes or loafers. Women can choose from a skirt (not too short), slacks, blouse, sweater, twinset, hosiery and closed toe shoes.
Everyone should bring a briefcase or portfolio for papers, a pen (make sure it works), and breath mints. Women should keep their purse small, and their make up, hair style, and jewelry conservative.