Human resources companies and services are regulated by various authorities depending on the country and specific HR functions. In the United States, key regulatory bodies include:

• Equal Employment Opportunity Commission (EEOC) – Enforces laws against workplace discrimination.
• Department of Labor (DOL) – Oversees wage laws, workplace safety, and employee benefits.
• Occupational Safety and Health Administration (OSHA) – Ensures workplace safety standards.
• National Labor Relations Board (NLRB) – Regulates labor relations and collective bargaining.
• Internal Revenue Service (IRS) – Governs payroll taxes and employee benefits compliance.

For HR compliance, businesses must adhere to laws such as the Fair Labor Standards Act (FLSA), Family and Medical Leave Act (FMLA), and Americans with Disabilities Act (ADA).