Hi, Mrs. Bean. Unfortunately, the answer varies state by state. Your best bet is to contact the people that issue building permits in your area and get a reading from them. The hysteria has gone beyond what is safe to what is PC and the only way to know is to find out what is legal in your state. I know that this is not what you wanted to hear, but that's about the only way to approach it today.
If your state lets you strip the lead paint, be sure to ask about disposing of the residue.