The CSTB Ethics Charter
Role of the External Business Ethics Committee

The fundamental principles that apply to all CSTB activities:

Impartiality of judgment

In performing its missions, the CSTB is guided solely by scientific and technical considerations, completely independent of any specific economic and/or commercial interests. It provides clients with recommendations based on the objective and unbiased results of its assessments.

It ensures that its own bodies respect and promote rigor and scientific neutrality both internally and externally. Under no circumstances shall its actions either facilitate or impede the market entry of a manufacturer or the development of a new technology.

The impartiality of its judgments is based above all on the integrity, honesty and objectivity of all CSTB employees in carrying out their professional duties. It also has the ability to apply a collective expertise whenever appropriate.

The CSTB is committed to performing its missions free of any conflict of interest likely to influence its judgment and compromise its objectivity.

Should a risk of conflict of interest arise, the CSTB adopts an organizational approach that ensures compliance with its own ethical principles. In case of any doubt, it refers the matter to the CSTB External Business Ethics Committee.

If, in the course of a CSTB employee’s professional duties, a potential conflict of interest is identified, no exceptions to this principle shall be made.

Social responsibility

The CSTB wishes to respond effectively to the social concerns of end users by contributing to the improvement of living spaces and their surroundings.

The work performed by each CSTB team engages the reputation of the entire organization.

The CSTB treats all its clients with the same consideration and in strict accordance with its own principles of fairness. The CSTB ensures equal access to its procedures.

The CSTB also strives for a proper correlation between the price of its services and their content, in line with its goal to remain accessible to all, within the framework of a rational business model.

2021 Workplace Gender Equality Index

In accordance with the French Law of September 5, 2018, and the Decree of January 8, 2019, all companies with 50 or more employees must determine and publish every year their Workplace Gender Equality Indexes.

The index involves assessing the pay gaps between genders in the company and, if necessary, taking corrective action.

The overall pay gap and five indicators are used to calculate an overall score out of 100.

For 2021, the CSTB achieved an overall score of 91, broken down as follows:

  1. The CSTB has a 3.6% pay gap in favor of men, mainly for engineers and managers.
  2. For salary increase rates, there is a 1.9% gap in favor of men.
  3. The promotion gap is narrow, 0.9% in favor of women.
  4. Women returning from maternal leave received their full salary increases earned while away.
  5. Among the 10 highest salaries, women currently remain underrepresented.

The CSTB is continuing to work to promote workplace equality. The index score, which increased by 6 points versus 2020 to a total of 91 points, emphasizes all the long-term initiatives that the company has launched.

  • The number of women working at the company continues to grow - nearly 42% - at all levels of the organization (6-point increase over 5 years for executives).
  • Pay gaps are going down every year, at below 4% in 2021. Learn more about the index:

Learn more about the index


The CSTB ensures the transparency and traceability of its scientific and technical sources, the quality of its scientific and technical knowledge, the clarity of its methods, the rigor of its reasoning, and the neutrality, clarity and transparency of its procedures.

Sharing and confidentiality

The CSTB produces and externally disseminates scientific and technical knowledge to advance the technical debate and scientific dialogue. It helps promote innovation in construction by encouraging and strengthening the scientific and technical culture of stakeholders.

Knowledge is disseminated in accordance with the obligations of discretion, confidentiality, intellectual property rights of third parties and the contractual obligations of the CSTB.

The sharing of scientific and technical knowledge gained in fulfilling its public mission contributes to the development of skills and expertise across the entire sector of sustainable construction.

Within the CSTB, knowledge “hybridization” is fostered to ensure that researchers become enlightened experts with the ability to leverage other skills in order to provide a comprehensive analysis.

Delivering a comprehensive response to stakeholder questions is the ultimate goal of CSTB expertise. Knowledge of a particular issue must include an awareness of the consequences a given solution could have on other aspects. The CSTB is organized to facilitate a cross-disciplinary approach and a sharing of skills essential to work involving different teams.

Duty of alert

In performing its missions, the central concern of the CSTB is the end user. In accordance with French law no. 2013-316 of April 16, 2013 on the independence of health and environment expertise and on the protection of whistleblowers, the CSTB has a duty to alert in matters of public health and the environment.

In accordance with French decree no. 2014-1628 of December 26, 2014, which sets out the list of those public establishments and organizations responsible for registering alerts in environmental and public health matters, the CSTB maintains a register of alerts reported by its own employees and the actions taken in response.

In accordance with terms set out in the legal texts referred to above, the CSTB informs the stakeholders concerned of those aspects that could clearly pose a threat to public safety and security and the quality of structures.

Scientific and technical quality

The positions adopted by the CSTB are dictated by scientific and technical considerations based on the current state-of-the-art in scientific and technical knowledge viewed in the wider context of the environmental, economic and social challenges involving the construction industry.

The CSTB allocates the human and material resources required to maintain the scientific and technical quality on which its reputation has been built.

In order to ensure an excellent quality of service, the CSTB periodically evaluates the skills of its employees, and provides them with the resources needed to update their knowledge.

Any physical person or legal entity may refer a matter to the External Ethics Committee by completing an online form.