1.51. For the design of the structures and systems of the containment, widely accepted codes and standards are required to be used (Ref. [1], para. 5.21). The selected codes and standards:

— should be applicable to the particular concept of the design;

— should form an integrated and comprehensive set of standards and criteria;

— should normally not use data and knowledge that are unavailable in the host State, unless such data can be analysed and shown to be relevant to the specific design, and the use of such data represents an enhancement of safety for the containment design.

1.52. Codes and standards have been developed by various national and inter­national organizations, covering areas such as:

— Materials,

— Manufacturing (e. g. welding),

— Civil structures,

— Pressure vessels and pipes,

— Instrumentation and control,

— Environmental and seismic qualification,

— Pre-service and in-service inspection and testing,

— Quality assurance,

— Fire protection.