# 1910.1000; 1926.55 — OSHA training requirements by standard: topic, frequency, and CFR citation

For 1910.1000; 1926.55, topic is Hydrogen sulfide training; who must be trained is workers with limited and routine exposure to decaying organic matter, including sewer workers, wastewater treatment staff, heating and cooling technicians, and agriculture workers; training frequency is Follow hazard communication requirements New hire training Retraining whenever a new chemical hazard is introduced into work area; retraining triggers is Whenever a new chemical hazard is introduced into work area; industry scope is General industry and construction, recorded from its source on 2026-08-05.

- **Standard:** 1910.1000; 1926.55 _(verified: appears in the quote below)_
- **Topic:** Hydrogen sulfide training _(verified: appears in the quote below)_
- **Who must be trained:** workers with limited and routine exposure to decaying organic matter, including sewer workers, wastewater treatment staff, heating and cooling technicians, and agriculture workers _(verified: appears in the quote below)_
- **Training frequency:** Follow hazard communication requirements New hire training Retraining whenever a new chemical hazard is introduced into work area _(verified: appears in the quote below)_
- **Retraining triggers:** Whenever a new chemical hazard is introduced into work area _(verified: appears in the quote below)_
- **Industry scope:** General industry and construction _(our reading, not quoted from the source)_

## What the source says

> New hire training Hydrogen sulfide training OSHA required: yes OSHA regulations: 1910.1000; 1926.55 This training is for workers with limited and routine exposure to decaying organic matter. A by-product of decaying organic matter — certain industrial wastes, effluents, liquid manure, natural gas — hydrogen sulfide is normally released when chemical reactions breakdown natural substances. Sewer workers, wastewater treatment staff, heating and cooling technicians, and agriculture workers, for example, likely need this training, along with workers tasked with entry of confined spaces. Note: If exposed as per hazard communication, then training is required. Training frequency: Follow hazard communication requirements New hire training Retraining whenever a new chemical hazard is introduced into work area Indoor air quality training OSHA required:

## 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/).