Request for Public Comment on the Draft Immediately Dangerous to Life or Health (IDLH) Val
The National Institute for Occupational Safety and Health (NIOSH) in the Centers for Disease Control and Prevention (CDC), an Operating Division of the Department of Health and Human Services (HHS), requests public comment on the draft Immediately Dangerous to Life or Health (IDLH) Value Profile document for the chemic
| Agency | Health and Human Services Department, Centers for Disease Control and Prevention |
|---|---|
| Document type | Notice |
| Published | 2026-03-18 |
| Summary | The National Institute for Occupational Safety and Health (NIOSH) in the Centers for Disease Control and Prevention (CDC), an Operating Division of the Department of Health and Human Services (HHS), requests public comment on the draft Immediately Dangerous to Life or Health (IDLH) Value Profile document for the chemical lewisite (CAS# 541-25-3). NIOSH develops IDLH values for workplace chemical concentrations and conditions carrying immediate, unacceptable health risks. IDLH values are based on health effects considerations determined through a critical assessment of toxicology and human health effects data. |
| Document number | 2026-05288 |
| Official record | https://www.federalregister.gov/documents/2026/03/18/2026-05288/request-for-public-comment-on-the-draft-immediately-dangerous-to-life-or-health-idlh-value-document |