You are living in a New York City apartment. It was built before 1978. Maybe the paint on the windowsill is chipping. Maybe your child just came back from the pediatrician with an elevated blood lead level. Maybe you simply want to know — before something goes wrong — whether the walls around your family contain lead. The answer to that question does not require guesswork. It requires a test. Lead paint testing in NYC apartments is available, fast, non-destructive, and in man