2.1.2 Inspections by a representative of the Administration
should be made at intervals of at least one per 6,000 lifejackets
produced, subject to a minimum of one inspection per calendar quarter.
When the manufacturer's quality control programme results in lifejackets
that are consistently free of defects, the rate of inspection may
be reduced to one in every 12,000. At least one lifejacket of each
type in production should be selected at random by the inspector and
subjected to detailed examination including, if necessary, cutting
open. He should also satisfy himself that the flotation tests are
being conducted satisfactorily; if he is not satisfied, a flotation
test should be undertaken.