# Standard Interpretations
1 - 1910.146(b) - Permit-Required Confined Space Entry Requirements For IDLH and Non-IDLH Spaces
2 - 1910.146(b) - Clarification of "potential atmospheric hazard" when reclassifying a PRCS as a non-permit required confined space.
3 - 1910.146(b) - Applicability of the confined-space standard to dock-leveler pits.
4 - 1910.146(b) - PRCS entry: the term "body" includes all extremities.
5 - 1910.146(b) - A confined space atmosphere above a PEL is not always a "hazardous atmosphere".
6 - 1910.146(b) - Applicability of 1910.146 to fall hazards into pits.
7 - 1910.146(b) - Guidance in determining whether elevator pits meet the definition of confined spaces.
8 - 1910.146(b) - Explanation from OSHA of the "not designed for continuous human occupancy" component if the definition of the term "confined space".
9 - 1910.146(b) - Permit-Required Confined Spaces: metal container curing ovens.