SG 108/25
In 2024, the EU consulted over its proposed listing of UV-328 in Regulation (EU) 2019/1021 on persistent organic pollutants (POP Recast Regulation, SafeGuardS 123/24).
On July 15, 2025, the EU issued Commission Delegated Regulation (EU) 2025/843 to revise Part A of Annex I to its POP Recast Regulation (current consolidated version to October 2024) by adding UV-328, with specific exemptions on intermediate use and other applications.
To reinforce the application and enforcement of the POP Recast Regulation, an unintentional trace contaminant (UTC) value has been set for UV-328 when the chemical is in substances, mixtures and articles. This UTC limit value will be strengthened over a four-year period
Highlights of the amendment are summarized in Table 1
| Substance (CAS/EC) | Scope | Specific exemption on intermediate use or other specifications | Effective date |
| UV-328¹ (25973-55-1/247-384-8) |
| ≤ 100 mg/kg as UTC | August 4, 2025 |
| ≤ 10 mg/kg as UTC | August 4, 2027 | ||
| ≤ 1.0 mg/kg as UTC | August 4, 2029 |
Table 1
¹Contains, inter alia, time-limited derogations for the following applications:
- Land-based motor vehicles until August 4, 2030
- Industrial coating for land-based motor vehicles, engineering machines, rail transportation vehicles, and heavy-duty coatings for large steel structures until August 4, 2030
- Triacetyl cellulose film for polarizers until August 4, 2030
- Photographic paper until August 4, 2030
- Spare parts for 1) land-based motor vehicles, 2) stationary industrial machines for use in agriculture, forestry and construction, 3) liquid crystal displays in instruments for analysis, measurements, control, monitoring, testing, production, and inspection, other than for medical applications, where UV-328 was initially used in their manufacture, until the end of their service life or December 31, 2043, whichever comes earlier
Articles containing UV-328 placed on the market within a specific exemption that were already in use by the specific expiry specific date may continue to be used after that date
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