Titanium Dioxide NSRL Adopted for Airborne Particles | Certivo Regulations

Titanium Dioxide NSRL Adopted for Airborne Particles

California Code of Regulations, Title 27, Section 25705 Office of Environmental Health Hazard Assessment (OEHHA) California

Announced

Jun 18, 2025

Effective

Oct 1, 2025

Implementation

Oct 1, 2025

Description

OEHHA adopted a No Significant Risk Level (NSRL) for titanium dioxide (airborne, unbound particles of respirable size). The NSRL provides a safe harbor level allowing businesses to determine if Prop 65 cancer warning requirements apply for exposures below the NSRL threshold. Effective October 1, 2025.

Sources

Official Proposition 65: No Significant Risk Levels for Titanium Dioxide (airborne, unbound particles of respirable size)

Key Findings

Titanium Dioxide NSRL Adopted for Airborne Particles