Summer season 2023 in M1 services 

The last classification meetings of the spring season will be held on 2 June 2023 (Cleanliness Classification of Ventilation Products, application deadline 29 May 2023) and 12 June 2023 (Emission Classification of Building Materials, application deadline 6 June 2023).

The M1 Classifications will be on vacation 15/06–16/07/2023, and no applications or inquiries will be processed during this period.

The first classification meeting for the fall season of the Emission Classification of Building Materials will be held on 9 August 2023 (application deadline 3 August 2023), the date of the first meeting for the fall season of Cleanliness Classification of Ventilation Products will be announced later. 

Wishing you a sunny and relaxing summer 

Katri Leino 
Product Manager, M1 Classification