# Rubber chemicals: Regulation

Why a tyre antiozonant is under fire in California

Source page: https://www.materialinsights.org/chemicals/rubber_chemicals/regulation/

What this tab covers How it is regulated and what could disrupt supply: hazard classification, rules in the EU, US and India, anti-dumping duties and other trade measures, and supply-risk notes.

#### Hazards

| Classification | UN number | Key risks |
|---|---|---|
| 6PPD: skin sensitiser, reproductive toxicity cat 2 (EU), aquatic acute and chronic 1; MBT: skin sensitiser; TMTD: toxic, sensitiser | UN3077 where environmentally hazardous | Skin sensitisation for workers; 6PPD-quinone from tyre wear kills coho salmon; nitrosamine formation from some accelerators. |

#### Main rules

| Where | Rule | Effect |
|---|---|---|
| **US (California)** | DTSC Safer Consumer Products: motor vehicle tyres containing 6PPD listed as a Priority Product (2023) | tyre makers must analyse alternatives |
| **EU** | REACH; Euro 7 tyre abrasion limits | pressure on tyre wear particles and their chemicals |
| **Germany/EU** | Workplace limits on N-nitrosamines (TRGS 552) | shift from MBS and TMTD to TBBS and safe amines |

#### India

| Rule | Effect |
|---|---|
| **Anti-dumping duty on sulphenamide accelerators from China, US and EU, five years (2026)** | supports NOCIL pricing |
| **Earlier ADD withdrawn July 2019; NOCIL petition covering products over 40% of FY2025 revenue** | trade defence history |

#### Trade measures

- Indian ADD on sulphenamides (2026)
- Further Indian cases pending on about 40% of NOCIL's portfolio (PL Capital, May 2026)

#### Supply risk

Heavy dependence on China; a 6PPD ban without a drop-in substitute would disrupt tyre supply chains.

## Other sections

- [Summary](https://www.materialinsights.org/chemicals/rubber_chemicals/index.md)
- [Overview](https://www.materialinsights.org/chemicals/rubber_chemicals/overview/index.md)
- [Correlation](https://www.materialinsights.org/chemicals/rubber_chemicals/correlation/index.md)
- [Production route](https://www.materialinsights.org/chemicals/rubber_chemicals/routes/index.md)
- [Production](https://www.materialinsights.org/chemicals/rubber_chemicals/production/index.md)
- [Feedstocks](https://www.materialinsights.org/chemicals/rubber_chemicals/feedstocks/index.md)
- [Cycles](https://www.materialinsights.org/chemicals/rubber_chemicals/cycles/index.md)
- [Trading](https://www.materialinsights.org/chemicals/rubber_chemicals/trading/index.md)
- [Movement](https://www.materialinsights.org/chemicals/rubber_chemicals/movement/index.md)
- [Characteristics](https://www.materialinsights.org/chemicals/rubber_chemicals/characteristics/index.md)
- [Emissions](https://www.materialinsights.org/chemicals/rubber_chemicals/emissions/index.md)
- [Relationships](https://www.materialinsights.org/chemicals/rubber_chemicals/links/index.md)