New OECD guidance strengthens nanomaterial safety testing

NIA Staff
1 min read

The OECD - OCDE Working Party on Manufactured Nanomaterials (WPMN), in collaboration with the EU Joint Research Centre (JRC), has released the 2025 edition of its guidance on sample preparation and dosimetry for safety testing of manufactured nanomaterials. The updated document refines international approaches to preparing and dosing nanomaterials in testing, supporting more reliable and regulatory-relevant data for risk assessment.

Original Source

oecd.org

https://www.oecd.org/en/publications/guidance-on-sample-preparation-and-dosimetry-for-manufactured-nanomaterials-2025-edition_87ec4ecc-en.html

Visit

More News

Corporate Members OnlyAdvancing Sound Regulation & Standards
NIA News

NIA Regulatory Committee – Upcoming 8th Meeting  

The NIA’s Regulatory Committee will hold its eighth meeting on 4 December, focusing on updates to NIA guidance regarding regulatory terminology and global definitions of nanomaterial. Members will hear updates from recent nanomaterial regulation meetings and will begin work on an NIA position regarding “one substance, one assessment”. The Committee will also outline its priorities for 2026. Members who would like to propose issues or topics for the Committee to address can contact Blanca…

Read More
All MembersAdvancing Sound Regulation & Standards
Regulatory News

US EPA continues to integrate nanomaterials under TSCA

The U.S. Environmental Protection Agency (EPA) is updating its internal guidance on research data evaluation to further align nano‑specific studies with Toxic Substances Control Act (TSCA) PMN/SNUN reviews. This ongoing work strengthens data harmonisation and brings nanomaterials more fully into mainstream chemical review processes, addressing topics such as dissolution, transformation, and particulate behaviour. 🔗 Learn more…

Read More
All Members
Regulatory News

OECD Progress on Manufactured Nanomaterials and Advanced Materials

OECD progress on manufactured nanomaterials and advanced materials The latest OECD Chemicals and Biosafety Progress Report (June–October 2025) highlights the work of the Working Party on Manufactured Nanomaterials (WPMN). Current priorities include revising guidance for nano-objects, developing workplace exposure metrics, and advancing case studies on 2D materials such as graphene and MXenes. Corporate members can access our detailed WPMN 2025 report prepared earlier this year.

Read More