Why subscribe to Reef and Bati CCTP?

Two solutions designed by CSTB Éditions to help you in your daily work! Subscribe to Reef to consult the technical and regulatory framework for construction.

Access in just a few clicks:

to the essential legislative and regulatory texts
to all current DTUs in full text
to nearly 2.000 full-text standards
to all CPT - Technical Specifications Notebooks
to professional rules, calculation rules, etc.

Intended for all construction stakeholders, this monitoring service brings together in an organized way for you, all the resources necessary for the design, implementation and operation of your new or renovated buildings.

This online service will adapt to your needs, from the "DTU Collection" version to the "Premium" version, you will get an almost immediate answer to all your questions. It also gives you access, depending on the level chosen, to more than 110 CSTB Guides in digital format, and even to the Archives of the repository since January 2003!

In addition to Reef, subscribe to Bati CCTP to edit your CCTP, DPGF, CCAP and Commitment Acts

Bati CCTP allows you to generate comprehensive, high-quality CCTPs from a library of pre-established clauses for both new and renovation projects. This service also allows you to draft and edit the CCAP and the Commitment Act for the same construction project, for both public and private works contracts.

Bati CCTP is constantly evolving, with 45 packages already available. With your subscription, you benefit from free content and feature updates.

To go even further, subscribe to Bati CCTP + Chiffrage!

This is the most comprehensive offering from Bati CCTP because it also allows you to cost your operations by accessing the "BatiChiffrage©" library published by Batiactu. You import recalculated prices based on the size and department of your operation into your descriptions generated from Bati CCTP. Access a database of more than 35.000 works.

CSTB Éditions advises you to opt for a Reef + Bati CCTP Pack

Within the same working environment, you can consult all the technical and regulatory texts for the Building Industry via your Reef, then switch to Bati CCTP to build your CCTP project. And vice versa, while creating your CCTP, you can simultaneously consult the technical and regulatory texts cited in the clauses and descriptions of your project in your Reef. This will ensure you comply with current regulations and find all the answers to your questions.

Take advantage of special offers from October 3 to 30, 2025, on the CSTB online store.