Rule lifecycle · RIN:1218-AD68

Methylenedianiline

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 is setting new limits on workplace exposure to methylenedianiline, a chemical that can damage workers' livers and may cause cancer with long-term exposure. If your company makes or handles products with this chemical, you'll need to install better ventilation systems, provide protective equipment, and set up testing to monitor worker health.

First seen

Jul 1, 2025

Last seen

Aug 20, 2025

Latest stage

Proposed Rule

PRORULE → RULE

Stage timeline

  1. Proposed·Jul 1, 2025

    Methylenedianiline

    #2025-11643

  2. Proposed·Aug 20, 2025

    Methylenedianiline

    #2025-15897