Any unit of local government, and any school district. "Pay scale and benefits" means the wage or salary, or the.The Office of Personnel Management (OPM) provides leadership on pay administration for civilian Federal employees. Provides annual pay adjustments for employees under each statutory pay system equal to the annual increase in the Employment Cost-Index (excluding sales). Wages of executive, administrative and professional employees, as defined in the Federal Fair Labor Standards Act of 1939, may be paid once a month. The General Schedule (GS) classification and pay system covers the majority of civilian white-collar Federal employees (about 1.5 million worldwide) Hotline: 1-800-478-3998. It is often described as the law that keeps citizens in the know about their government. It is often described as the law that keeps citizens in the know about their government. Disability rights are civil rights.