methods or physical structures designed to prevent the dispersion of radioactive substances. Although approximately synonymous with confinement, containment is normally used to refer to methods or structures that prevent radioactive substances being dispersed in the environment if confinement fails.
Acting on the declarations of basic technical characteristics and on the information communicated in pursuance of Article 6, the Commission shall specify in the "particular safeguard provisions" the procedures by which the persons or undertakings concerned shall meet the requirements in relation to safeguards imposed on them. Among others these procedures shall include ... containment and surveillance measures, in accordance with the modalities agreed upon with the plant operators ...
