The Department of Labor has a significant impact on HR decisions, particularly when it comes to wage and hour laws, workplace safety, and employee benefits. HR teams need to be familiar with regulations like the Fair Labor Standards Act, which governs minimum wage, overtime, and exemptions, as well as the Family and Medical Leave Act, which outlines employee leave entitlements. The DOL also enforces regulations related to worker classification, independent contractors, and employee record-keeping, so it's essential for HR teams to stay up-to-date on these areas to ensure compliance and avoid potential penalties or fines.