Public CommentProposedPublic CommentProposed Regulation
OEHHA proposes NSRLs for 1-bromopropane and diethanolamine
California Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1986)California Office of Environmental Health Hazard Assessment (OEHHA)California
Announced
Aug 22, 2025
Description
OEHHA proposed amendments to Title 27, California Code of Regulations, Section 25705(b) to adopt No Significant Risk Levels (NSRLs) for 1-bromopropane (54 micrograms per day) and diethanolamine for dermal exposure (6.4 micrograms per day). The diethanolamine NSRL applies only to dermal routes of exposure. The public comment period was extended to November 7, 2025 at the request of industry stakeholders.
Sources
Key Findings
OEHHA proposes NSRLs for 1-bromopropane and diethanolamine
ailability Date: August 22, 2025 Deadline for Public Comment: October 6, 2025 NOTICE IS HEREBY GIVEN that the Office of Environmental Health Hazard Assessment (OEHHA) proposes to adopt a Proposition 651 No Significant Risk Level (NSRL) for 1-bromopropane, as well as a dermal NSRL for diethanolamine, by amending Title 27, California Code of Regulations, section 25705(b). [...] that poses no significant risk of cancer.