@Haws a few days ago it said "Not in BOP custody". now it lists FCI Lompoc II as his location. So May can resolve YES, and the other months can resolve NO.

Do later months resolve yes or no if he's imprisoned in an earlier month?

@TheAllMemeingEye Resolves on the exact month.

Example: If CZ is taken to prison in June, June resolves YES and all other months (future and past) resolves NO.