; and (B) includes whole tree processors, cut-to-length processors, stroke boom delimbers, wheeled and track feller-bunchers, pull thru delimbers, wheeled and track forwarders, chippers, grinders, mechanical debarkers, wheeled and track grapple skidders, yarders, bulldozers, excavators, and log loaders. ; and (2) in section 13(c) ( 29 U.S.C. 211(c) ), by adding at the end the following: (8) The provisions of section 12 relating to child labor shall apply to an employee who is 16 or 17 years old employed in a logging or mechanized operation in an occupation that the Secretary of Labor finds and declares to be particularly hazardous for the employment of children ages 16 or 17, except where such employee is employed by his parent or by a person standing in the place of his parent in a logging or mechanized operation owned or operated by such parent or person. .