In this week's 483 we're going to look at the importance of cleaning work and non-work surfaces to prevent cross-contamination. What's interesting about this particular 483 is that the FDA doesn't note this on sterile products, but an operation's non-sterile compounding areas. Also, the 483 specifically mentions "hazardous drugs," so there should be no question in your mind whether the FDA is looking for some compliance with USP Chapter .