# Standard Interpretations
1 - 1910.303(a) - Application of 29 CFR 1910 Subpart S to design of industrial machinery
2 - 1910.303(a) - NRTL requirements for shielding gas regulators.
3 - 1910.303(a) - Approval requirements for replacement, modification, repair, or rehabilitation of electrical utilization equipment.
4 - 1910.303(a) - Use of temporary panelboard ingress barriers in General Industry settings.
5 - 1910.303(a) - Electrical equipment approved by a NRTL is acceptable to OSHA.
6 - 1910.303(a) - Workplace use of electrical equipment designated as "Household Use Only" and recordkeeping requirements.
7 - 1910.303(a) - Electrical conductors and equipment must be approved and used according to its listing/label.
8 - 1910.303(a) - Acceptability of modifying a standard on/off switch to provide lockout capability to a machine.
9 - 1910.303(a) - NRTL certification for electrically-operated sewer inspection equipment.
10 - 1910.303(a) - Clarification of the Electrical Standard as it applies to flexible power cords on appliances.
11 - 1910.303(a) - Presence sensing devices (PSDs) for power presses.
12 - 1910.303(a) - Approval of extension cords by a NRTL.
13 - 1910.303(a) - Control systems used for emergency evacuation are required to be listed by Underwriter's Laboratories.
14 - 1910.303(a) - Repair/Rebuilding of UL Listed Equipment for Hazardous Locations.
15 - 1910.303(a) - Certification of Nurse Call Systems
16 - 1910.303(a) - OSHA practices in recognizing national testing laboratories.