In order for a water retaining facility to be commissioned or recommissioned, a licence must be obtained from the supervisory authority.
Applications for a licence must include all the information required to carry out a technical safety assessment.
The supervisory authority examines the information provided by the applicant and verifies whether the technical safety requirements are complied with. If deemed necessary to ensure the technical safety of the installation, the supervisory authority shall specify conditions concerning its commissioning and its operation.