That means "Consumer Product Safety Commission Advanced Notice of Proposed Rulemaking". They are asking for comments on requiring a safety feature on table saws. See here for one commissioner's comments.
Anyone know how to submit comments on this subject? They say you can go to www.regulations.gov and submit comments but you need the docket number of the ANPR, which I can't find. If someone is better at finding these things, I'd appreciate your help.