While historically available on CD-ROM, the Reef is now largely provided as an online service via the CSTB Boutique , offering: The most comprehensive version.
For the Reef product, CSTB acts as a central aggregator, compiling and distributing the enormous corpus of regulations and technical texts that govern the French construction industry. This includes, for example, "all important regulations in force, in order to comply with the law and avoid any dispute; all valid DTUs and DTU standards; over 640 standards that apply to the building industry; examples of solutions and calculation rules". cd reef v4 cstb 2021
While the keyword "cd reef v4 cstb 2021" seems to refer to a physical disc, it is more likely that many professionals use the name "Reef" generically for the service, which by 2021 was primarily an online offering. While historically available on CD-ROM, the Reef is
Subscriptions often include quarterly updates to ensure the latest amendments and new standards are integrated immediately. While the keyword "cd reef v4 cstb 2021"
This would leverage the existing Reef Integral or Premium database and transform it into a more proactive workflow tool. CD Reef V4 CSTB - Facebook