Adds new definitions to the Fair Labor Standards Act for "timber harvesting employer" and "mechanized timber harvesting employer," specifying logging tasks and machines covered. It directs that the federal child‑labor safety rules for hazardous work apply to 16‑ and 17‑year‑old employees in timber‑harvesting jobs the Secretary of Labor declares particularly hazardous, with a narrow exception for operations owned or operated by a worker’s parent or a person acting as a parent.