# 1910.330-335 — OSHA training requirements by standard: topic, frequency, and CFR citation

For 1910.330-335, topic is Arc Flash (NFPA 70E) training; who must be trained is anyone who may work on, near, or around electrical equipment, including workers tasked with replacing a circuit breaker, operating a knife switch, or qualified to do electrical work with 600 volts or less; training frequency is New hire training Retraining when worker responsibilities change/new hazard introduced Retraining according to "if/then" statements for PPE Follow training guidelines for electrical safety and PPE training Check regulation, multiple circumstances require retraining; retraining triggers is When worker responsibilities change/new hazard introduced; according to "if/then" statements for PPE; multiple circumstances require retraining; industry scope is General industry, recorded from its source on 2026-08-05.

- **Standard:** 1910.330-335 _(verified: appears in the quote below)_
- **Topic:** Arc Flash (NFPA 70E) training _(verified: appears in the quote below)_
- **Who must be trained:** anyone who may work on, near, or around electrical equipment, including workers tasked with replacing a circuit breaker, operating a knife switch, or qualified to do electrical work with 600 volts or less
- **Training frequency:** New hire training Retraining when worker responsibilities change/new hazard introduced Retraining according to "if/then" statements for PPE Follow training guidelines for electrical safety and PPE training Check regulation, multiple circumstances require retraining
- **Retraining triggers:** When worker responsibilities change/new hazard introduced; according to "if/then" statements for PPE; multiple circumstances require retraining
- **Industry scope:** General industry _(our reading, not quoted from the source)_

## What the source says

> Arc Flash (NFPA 70E) training OSHA required: yes OSHA regulation: 1910.330-335

## Source

- https://hsi.com/blog/oshas-required-training-frequencies

Last verified: 2026-08-05. Review by: 2028-08-04.
Part of [OSHA training requirements by standard: topic, frequency, and CFR citation](https://referencesource.org/osha-training-requirements-by-standard/).