16 CFR §1210.3

1. (a)A lighter subject to this part 1210 shall be resistant to successful operation by at least 85 percent of the child-test panel when tested in the manner prescribed by § 1210.4.
2. (b)The mechanism or system of a lighter subject to this part 1210 that makes the product resist successful operation by children must:
   1. (1)Reset itself automatically after each operation of the ignition mechanism of the lighter,
   2. (2)Not impair safe operation of the lighter when used in a normal and convenient manner,
   3. (3)Be effective for the reasonably expected life of the lighter, and
   4. (4)Not be easily overriden or deactivated.