In the United States, there are over 230 amphibians, over 280 reptiles and approximately 800 species of fish. Each of these categories has species represented on the US Endangered Species List.
Employees in the civil services work under one of the independent agencies or one of the 15 executive departments. In addition to departments, there are a number of staff organizations grouped into the Executive Office of the President.
Exempt Versus Non-Exempt The primary difference between a non-exempt worker and an exempt worker is the rights they receive regarding wages and time worked. Employers must pay non-exempt employees a wage for all hours worked.