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.
The Postal Service is a quasi-government agency that is funded only by mail-related revenues. USPS employed about 541,000 full-time career workers as of May 1, according to a spokeswoman. A federal or postal worker is currently eligible to retire if they meet one of the following seven criteria: 1.) They are covered by FERS, are at least 56 years old (the minimum retirement age for FERS) and have at least 30 years of service. 2.)