In order to raise the level of quality in the field of laboratory testing of construction materials on November 14, 2018, organized by the Civil Engineering Institute Macedonia AD Skopje, Laboratory Institute, Sector ABC, an Interlaboratory meeting was held.

The meeting was attended by 12 Laboratories:

- Civil Engineering Institute Macedonia AD Skopje
- Institute for Examination of Materials and Development of New Technologies Skopje
- Euro Consulting Skopje
- Euro Road Design Skopje
- GD Granit AD Skopje
- DG Beton AD Skopje
- Faculty of Civil Engineering Skopje
- State University of Tetova Laboratory for Examination of Materials
- Labing Skopje
- GI Montenegro Podgorica
- GEING Krebs und Kiefer Skopje
- Geocontrol Skopje

The Interlaboratory comparison covered a total of 54 test methods in the field of fresh and hardened concrete, steel, cement, mortar, water, additives and concrete prefabricated.