: It contains full-text versions of all active DTUs (Unified Technical Documents), NF DTU standards , and professional technical rules.
This suggests that while physical media like the DVD Reef 4 were still available, the industry was moving toward dynamic, always-updated online platforms. cd reef v4 cstb 2021
New firms can typically request temporary trial access or a guided demonstration via the official CSTB Éditions portal to evaluate which documentary packages match their workflow. Conclusion : It contains full-text versions of all active
Be wary of vendors showing a "CSTB test report" rather than a full "CSTB Technical Appraisal." A test report is not an approval. NF DTU standards
Technical requirements for innovative products or techniques that are not covered by standard DTU.