OSHA Confined Spaces Standard FAQs | Keller
However, any space that you have previously identified as a nonpermit confined space does need to be reevaluated under (c)(6): if "there are changes in the use or configuration of a nonpermit confined space that might increase the hazards to entrants, the employer shall reevaluate that space and, if necessary, reclassify it as a ...