EPA Reopens Comment Period On Proposed Risk Management Rule For PV29

On March 4, 2025, the U.S. Environmental Protection Agency (EPA) announced that it is reopening the comment period for the January 2025 proposed rule to address the unreasonable risk of injury to human health presented by Color Index (C.I.) Pigment Violet 29 (PV29) under its conditions of use (COU) as documented in EPA's January 2021 risk evaluation and September 2022 revised risk determination. 90 Fed. Reg. 11142. Comments are due April 29, 2025.

As reported in our January 27, 2025, memorandum, EPA proposes, under Section 6(a) of the Toxic Substances Control Act (TSCA), to:

• Require use of assigned protection factor (APF) 50 respirators and equipment and area cleaning to address the risk from inhalation exposure to dry powder PV29 (also referred to as regulated PV29), where dry powder PV29 is expected to be present, for the following COUs:
  • Domestic manufacture;