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November 19, 2024

EPA Issues ANPRM under TSCA Section 6 on 6PPD and 6PPD-Quinone

On August 1, 2023, Earthjustice filed a petition under Section 21 of the Toxic Substances Control Act (TSCA) asking the U.S. Environmental Protection Agency (EPA) to establish regulations prohibiting the manufacturing, processing, use, and distribution of the chemical N-(1,3-Dimethylbutyl)-N′-phenyl-p-phenylenediamine (6PPD) for and in tires. Earthjustice filed the petition on behalf of the Yurok Tribe, the Port Gamble S’Klallam Tribe, and the Puyallup Tribe of Indians, and EPA granted the...
July 24, 2024

Senate Committee Will Hold Hearing on Understanding the Potential Environmental Impacts of 6PPD

The Senate Committee on Environment and Public Works will hold a hearing on July 31, 2024, on “Understanding the Potential Environmental Impacts of the Chemical 6PPD.” The scheduled witnesses include: As reported in our November 3, 2023, blog item, on November 2, 2023, the U.S. Environmental Protection Agency (EPA) granted a petition filed under Section 21 of the Toxic Substances Control Act (TSCA) to address the use of N-(1,3-Dimethylbutyl)-N′-phenyl-p-phenylenediamine (6PPD) in tires....
February 5, 2024

EPA Releases Draft 6PPD-Quinone Water Testing Method for Widespread Use

The U.S. Environmental Protection Agency (EPA) announced on January 30, 2024, the publication of a draft testing method (EPA Method 1634) that will enable government agencies, Tribes, and other groups to determine where and when 6PPD-quinone is present in local stormwater and surface waters. As reported in our November 3, 2023, blog item, on November 2, 2023, EPA announced that it granted a petition filed under Section 21 of the Toxic Substances Control Act (TSCA)...
November 16, 2023

U.S. Tire Manufacturers Association and USGS Partner for Joint Research into 6PPD Alternatives

The U.S. Tire Manufacturers Association (USTMA) announced on November 14, 2023, that it will partner with the U.S. Geological Survey (USGS) on a research project “to assess and refine methods of evaluating potential alternatives to [N-(1,3-Dimethylbutyl)-N′-phenyl-p-phenylenediamine (6PPD)] for use in tires.” As reported in our November 3, 2023, blog item, the U.S. Environmental Protection Agency (EPA) has granted a petition filed under Section 21 of the Toxic Substances Control Act (TSCA)...
August 9, 2023

TSCA Section 21 Citizen Petition Seeks Prohibition of 6PPD in Tires

On August 1, 2023, Earthjustice filed a citizen petition under Section 21 of the Toxic Substances Control Act (TSCA) asking the U.S. Environmental Protection Agency (EPA) to establish regulations prohibiting the manufacturing, processing, use, and distribution of N-(1,3-Dimethylbutyl)-N’-phenyl-p-phenylenediamine (6PPD) (Chemical Abstracts Service Registry Number® (CAS RN®) 793-24-8) for and in tires. Earthjustice filed the petition on behalf of the Yurok Tribe, the Port Gamble...