Data record `std.nfpa-70e.structure.120-3-principles`

Verified 2026-10-27 Confidence: High

Clause 120.3 of NFPA 70E-2027 states the lockout/tagout principles: every person who could be exposed takes part, the procedure is built from the existing equipment and up-to-date drawings, all electrical energy sources are controlled, interlocks are reviewed so that none can re-energize the circuit, locks and tags go only on circuit disconnecting means, control devices are never the primary isolating device, each device is unique and identifiable, the procedure is coordinated with the employer's other energy-control procedures, and control takes one of two forms, simple or complex.

Provenance. Where this record comes from and where it is used: the cited source, the record itself and the entry that cites it.

Provenance: the chain from source to entry.
Step	Item	Detail
Source	NFPA 70E-2027	Licensed standard, clause 120.3
Data record	std.nfpa-70e.structure.120-3-principles	Verified 2026-10-27
Entry	Standard for Electrical Safety in the Workplace	No revisions

Subject: Standard for Electrical Safety in the Workplace (Standards)
Kind: Standard scope
Source: NFPA 70E-2027, clause 120.3, Standard for Electrical Safety in the Workplace, NFPA. Publisher page

History

Every recorded change to this data record, oldest first.
Date	Change
2026-10-27	created

Cite this page

Cite the governing standard for the fact itself; cite this page as the finding aid.

"Data record std.nfpa-70e.structure.120-3-principles." Arc Flash Reference. 2026-10-27. https://www.arcflashreference.com/data/std.nfpa-70e.structure.120-3-principles/.

Arc Flash Reference, Data record std.nfpa-70e.structure.120-3-principles (Oct. 27, 2026), https://www.arcflashreference.com/data/std.nfpa-70e.structure.120-3-principles/.

@misc{etr-data-std-nfpa-70e-structure-120-3-principles,
  title = {Data record std.nfpa-70e.structure.120-3-principles},
  howpublished = {\url{https://www.arcflashreference.com/data/std.nfpa-70e.structure.120-3-principles/}},
  organization = {Arc Flash Reference},
  publisher = {Arc Flash Reference},
  year = {2026},
  note = {last substantive change 2026-10-27}
}

{{cite web |title=Data record std.nfpa-70e.structure.120-3-principles |website=Arc Flash Reference |publisher=Arc Flash Reference |url=https://www.arcflashreference.com/data/std.nfpa-70e.structure.120-3-principles/ |date=2026-10-27 |access-date=}}