The Concrete Sustainability Council (CSC),the global certification system for responsibly sourced concrete, is pleased to announce the publication of the CSC CO₂ Module for Austria, a new tool enabling the transparent evaluation and recognition of CO₂-reduced concrete. This marks another step in CSC’s mission to promote transparency, accountability, and climate action in the construction sector.
Developed by the Güteverband Transportbeton (GVTB) and based on the ÖBV guideline “CO₂ Classes for Concrete” (March 2025 edition), this voluntary add-on to the CSC certification supports the transition to low-carbon construction.
The CO₂ Module categorizes concrete mixes based on their specific carbon footprint — measured in kilograms of CO₂-equivalent per cubic meter — and assigns them to one of four CSC CO₂ performance levels:
Level 1: ≥ 30% CO₂ reduction
Level 2: ≥ 40% CO₂ reduction
Level 3: ≥ 50% CO₂ reduction
Level 4: ≥ 60% CO₂ reduction
This transparent classification system empowers project developers, specifiers, and concrete producers to credibly demonstrate and communicate carbon reductions, supporting both market differentiation and climate action.
The publication of the CSC CO₂ Module marks a significant advancement in CSC’s commitment to sustainability and transparency, offering a practical and science-based tool for the Austrian concrete sector to support national and EU decarbonization goals.
You can find the new updated CO2 Module Annex here: https://csc.eco/wp-content/uploads/2023/07/CSC-Annex_-CSC-CO2-Module_2022-12-07-1.pdf