According to the Decision of the Greek Ministry of Environment, Energy and Climate Change No. 9451/208 (FEK 815/24-5-2007), construction materials produced and distributed in Greece should comply with the CE marking regulation as pronounced in the EU Directive 89/106. Specifically, stonewool should be examined and certified in compliance with the European Standard EN 13162 "Thermal insulation products for buildings - Factory made mineral wool (MW) products - Specifications".

Stonewool undergoes initial tests (ITT) in a notified laboratory, in accordance to the requirements of Category 1. Based on the results of those tests, the institute issues the Certificate of Compliance and the producer issues the Declaration of Compliace, which grants them the right to use the CE mark for their products.