2.1.1 Administrations should take appropriate
action to ensure uniformity in the Implementation and application
of the provisions of this chapter.
2.1.2 The review and approval of the design of
each unit should be carried out by officers of the Administration.
However, the Administration may entrust this function to certifying
authorities nominated for this purpose or to organizations recognized
by it. In every case the Administration concerned should fully guarantee
the completeness and efficiency of the design evaluation.