34ea531b_HA__1926_Subpart_AA__1926_1200__General_Industry
[Difference] Confined Space with Hazards Isolated [Construction] Allows employers to establish an Isolated-Hazard Confined Space by isolating or eliminating all physical and atmospheric hazards in a confined space. [General Industry] 
Doesn’t address working in confined spaces in which hazard has been isolated.
New Confined Spaces in Construction Standard from OSHA: 1926 Subpart AA, 1926.1200
General Industry