ECHA Publishes Microplastics Reporting System Requirements under REACH

On April 16, 2025, the European Chemicals Agency (ECHA) published detailed requirements for the reporting of synthetic polymer microparticles, commonly referred to as microplastics, under the REACH Regulation. This initiative aims to enhance transparency and facilitate regulatory oversight of intentionally added microplastics in products.

Background: EU Restriction on Intentionally Added Microplastics

In October 2023, the European Union adopted a restriction on intentionally added microplastics by amending Annex XVII of the REACH Regulation (Entry 78). This restriction is intended to prevent the release of synthetic polymer microparticles that are resistant to environmental degradation. It applies to a wide range of products, including cosmetics, detergents, fertilizers, plant protection products, and medical devices. Depending on the product category, the restriction will be phased in over several years, but a key requirement for manufacturers and importers is to report the presence of synthetic polymer microparticles in their products from 2026 onwards.

Key Elements of the Reporting System

• Who must report: Manufacturers and importers placing mixtures or articles on the market containing synthetic polymer microparticles that meet the definition set under the restriction.

• What must be reported: Information including the polymer identity, particle size and shape, functional use, quantities placed on the market, and the manner in which the microparticles are used or released.

• When to report: Reporting must occur annually. The first reports, covering the 2026 calendar year, must be submitted by 31 May 2027.

• Reporting platform: Companies must submit their reports through a dedicated web-based portal being developed by ECHA. Submissions must be made in IUCLID format, and templates and technical guidance will be provided to assist companies in compiling their data.

• Format and data requirements: The reporting system will be structured around specific mandatory fields to ensure the consistency and usability of the reported information. Data must be complete and accurate, and submitted electronically.

Practical Considerations for Companies

Companies subject to the reporting requirement should start preparing early by:

• Identifying and characterizing any synthetic polymer microparticles present in their products.

• Collecting data on polymer composition, particle dimensions, intended uses, and quantities placed on the market.

• Familiarizing themselves with the IUCLID system and ECHA’s reporting instructions to avoid delays in data submission.

While ECHA is working to ensure the online portal will be available before the first reporting deadline, companies are encouraged to monitor ECHA updates and prepare their data in advance.

Next Steps

The reporting obligation is part of a broader set of measures introduced by the EU to minimize the release of persistent microplastics into the environment. By collecting standardized information on the presence and use of synthetic polymer microparticles, the EU aims to better understand sources of emissions and monitor the restriction’s effectiveness over time.

For full technical details, stakeholders are encouraged to consult the official document here.