OSHA/MIOSHA Confined Space Entry 29 CFR 1910.146(g)(h)(i)(j)(k) Training provides affected employees with an understanding of confined spaces and their hazards. Key elements of the course include: entry procedures entrant, stand-by, supervisory requirements monitoring requirements controlling hazards permit systems lock-out tag-out personal protective equipment rescue procedures hands-on practice, if desired An annual refresher training is required by OSHA.