LES ACTIVITÉS NUCLÉAIRES : RAYONNEMENTS IONISANTS ET RISQUES POUR LA SANTÉ ET L’ENVIRONNEMENT fields, and all the operational entity heads and their deputies fulfil both managerial and inspection functions. Most of the inspections are carried out by inspectors assigned to the regional divisions, who represent 50% of ASNR’s inspectors. The 184 inspectors assigned to the departments take part in ASNR inspections within their area of expertise; they carried out about 20% of inspections in 2025, with most of their work being the examination of files. As previously mentioned, ASNR continuously improves the efficiency of its oversight by targeting and modulating its inspections according to the scale of the implications for the protection of persons and the environment. In 2025, ASNR inspectors carried out a total of 1,951 inspections, representing 4,415 inspection man.days in the field. About 1% of the inspections were carried out remotely. The breakdown per area of activity is shown in Table 5. ASNR inspections programme To guarantee a distribution of the inspection resources proportionate to the safety and radiation protection implications of the various facilities and activities, ASNR drafts a forecast inspections schedule every year, taking account of the inspection implications (see point 3.1). The results of the year’s priority actions are presented in the specific chapters for nuclear installations and activities. For example, in 2025 ASNR has: ∙continued to provide oversight of suppliers of materials important to nuclear safety (see chapter 8, Highlight No. 16); ∙continued the campaign of inspections of stress corrosion on auxiliary lines, which began in 2021(see chapter 8, Highlight No. 1); ∙carried out an inspection campaign on core reactivity control at NPPs in operation (see chapter 8, Highlight No. 3); It also checked the crisis organisation for the Flamanville EPR (see chapter 8, Highlight No. 6). This schedule is not communicated to the licensees or to those in charge of nuclear activities. ASNR monitors the performance of the programme and the follow-up given to the inspections, through periodic reviews. This follow-up enables the inspected activities to be assessed and contributes to the continuous improvement of the inspection process. Information relative to the inspections ASNR informs the public of the follow-up to the inspections by posting the inspection follow-up letters on-line at asnr.fr. Moreover, after each in-depth inspection, ASNR publishes an information notice on asnr.fr. 3.1.3 – Inspection of Basic Nuclear Installations and Pressure Equipment In 2025, 2,613 inspector.days were devoted to the on-site field inspection of BNIs and NPE, corresponding to 958 inspections. Of these, 19% were unannounced. Furthermore, 11 inspections were conducted remotely. Inspection work in the field can be broken down into 1,345 inspector. days in NPPs (470 on-site inspections), 904 inspector.days in other BNIs (338 on-site inspections), i.e. mainly “fuel cycle” facilities, research facilities and facilities undergoing decommissioning, and 364 inspector.days for NPE (139 on-site inspections). The remote inspections can be broken down as follows: 3 inspections for the NPPs, 5 for the other BNIs and 3 inspections for NPE. Two in-depth inspections were carried out in 2025, at the Blayais NPP and at Orano’s Melox site in Marcoule, corresponding to 115 inspector.days on site. The ASNR labour inspectors also carried out 457 interventions during the 165 inspection days in the NPPs. 3.1.4 – Inspection of radioactive substances transport In 2025, ASNR devoted 145 inspector.days to on-site inspection of transport activities, corresponding to 91 on-site inspections. Of these, 29% were unannounced. No remote inspections were carried out. 3.1.5 – Inspection of small-scale nuclear activities ASNR organises its inspection activity proportionate to the radiological issues involved in the use of ionising radiation and consistent with the actions of the other inspection services. In 2025, 1,525 Inspector.days were devoted to on-site inspections of small-scale nuclear activities, corresponding to 833 inspections, 7% of which were unannounced. This inspection work was notably distributed among the medical, industrial, veterinary, research or naturally occurring radioactivity fields. Nine inspections were carried out remotely. Inspector Categories Departments Divisions Total Nuclear safety inspectors 153 133 286 including nuclear safety inspectors for transport 16 45 61 Radiation protection inspectors 46 107 153 Labour inspectors 3 19 22 Inspectors for all fields 184 183 367 TABLE 4 Breakdown of inspectors per inspection field as at 31 December 2025 Basic Nuclear Installation (except Pressure Equipment) Pressure Equipment Transport of radioactive substances Small-scale nuclear activities Approved Organisations and Laboratories Total 816 142 91 833 69 1,951 TABLE 5 Number of inspections per field in 2025 148 ASNR Report on the state of nuclear safety and radiation protection in France in 2025
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