Rule lifecycle · RIN:1218-AD63

Ethylene Oxide

Department of Labor, Occupational Safety and Health Administration — observed across 2 documents over 50 days. Use the source documents below before deciding whether this affects your business.

In plain English

OSHA proposing stricter limits on ethylene oxide, sterilant gas used in medical equipment sterilization, because it causes cancer and reproductive harm. Businesses using EtO should prepare now—upcoming rules will likely require upgraded ventilation or alternative sterilization methods.

First seen

Jul 1, 2025

Last seen

Aug 20, 2025

Latest stage

Proposed Rule

PRORULE → RULE

Stage timeline

  1. Proposed·Jul 1, 2025

    Ethylene Oxide

    #2025-11638

  2. Proposed·Aug 20, 2025

    Ethylene Oxide

    #2025-15914