(1) A lighter must be of a kind that has been—
(a) tested in the way set out in the American standard, section 1210.4; and
(b) shown to be resistant to successful operation by at least 85% of the child-test panel when tested in that way.
(2) The mechanism or system of a lighter that is designed or intended to make the lighter resistant to successful operation by at least 85% of the child-test panel must—
(a) reset itself automatically after each operation of the ignition mechanism of the lighter; and
(b) not impair safe operation of the lighter when used in a normal and convenient way; and
(c) be effective for the functional life of the lighter; and
(d) not be easily overridden or deactivated.