Nuclear Energy Ordinance
(NEO)

¹ The hold­er of an op­er­at­ing li­cence for a nuc­le­ar power plant must carry out a com­pre­hens­ive safety re­view every 10 years (Peri­od­ic Safety Re­view, PSR).

² For this pur­pose it must:

a.

ex­plain and eval­u­ate the safety concept;

b.

con­duct a de­term­in­ist­ic ana­lys­is of the safety status and a PSR;

c.

ex­plain and eval­u­ate the over­all safety status;

d.

ex­plain and eval­u­ate wheth­er the or­gan­isa­tion of the plant and its per­son­nel sat­is­fy safety re­quire­ments.

³ The PSR doc­u­ments must be sub­mit­ted to EN­SI two years at the latest be­fore the end of any op­er­at­ing dec­ade.

⁴ For the peri­od fol­low­ing the fourth op­er­at­ing dec­ade, proof of safety for long-term op­er­a­tions in ac­cord­ance with Art­icle 34a must also be sub­mit­ted as part of the PSR.

⁵ EN­SI shall spe­cify the de­tailed re­quire­ments on peri­od­ic­al safety re­views in guidelines. It may provide re­lief for nuc­le­ar power plants for the peri­od fol­low­ing their be­ing defin­it­ively taken out of ser­vice or ex­empt them en­tirely from the ob­lig­a­tion to sub­mit a PSR.