EPAProposed Rule
N-(1,3-Dimethylbutyl)-N′-phenyl-pphenylenediamine (6PPD) and its transformation product, 6PPDquinone; Regulatory Investigation under the Toxic Substances Control Act (TSCA); Extension of the Comment Period
EnvironmentHealthcareTransportation
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Summary
The EPA is investigating a chemical called 6PPD, which is used in rubber tires to keep them from wearing out too quickly. The agency wants to understand if this chemical and its breakdown product pose health or environmental risks, and is giving the public more time to share information and concerns about it.
Key Points
- 16PPD is a chemical additive used in car and truck tires to extend their lifespan and improve performance
- 2The EPA is concerned about 6PPDquinone, which is created when 6PPD breaks down in the environment, particularly in water
- 3The agency extended the deadline for public comments so more people and companies can submit evidence about whether this chemical is safe
- 4This investigation could eventually lead to restrictions on how 6PPD is used or requirements for safer alternatives in tire manufacturing
- 5The findings may affect tire manufacturers and potentially consumers through changes in tire products and costs
Impact Assessment
If you are a tire manufacturer or importer, this means you may need to reformulate products, conduct additional testing, or phase out 6PPD if the EPA determines it poses unreasonable risks.
Impact Level
Significant
Geographic Scope
National
Compliance Cost
Moderate
Who is Affected
ManufacturersImporters/ExportersTransportation CompaniesConsumers
Key Dates
Published
January 17, 2025
Regulatory Connections
Authorized By
Amends CFR Sections
40 CFR Part 70240 CFR Part 70440 CFR Part 70540 CFR Part 707
This summary is for informational purposes only. It may not capture all nuances of the regulation. Always refer to the official text for authoritative information.
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