A lifejacket which depends on inflation for buoyancy shall
have not less than two separate compartments, shall comply with the
requirements of paragraph 2.2.1 and shall:
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.1 inflate automatically upon immersion, be provided
with a device to permit inflation by a single manual motion and be
capable of having each chamber inflated by mouth;
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.2 in the event of loss of buoyancy in any one
compartment be capable of complying with the requirements of paragraphs
2.2.1.5, 2.2.1.6 and 2.2.1.7; and
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.3 comply with the requirements of paragraph 2.2.1.11
after inflation by means of the automatic mechanism.