Where's the best place to work in the federal government?

The Nuclear Regulatory Commission, believe it or not.

The agency that oversees the use of hazardous nuclear material in the United States ranked highest in employee satisfaction in 2010, according to a survey of more than 263,000 federal workers.

The worst place to work?

It's a tossup between the National Archives and Records Administration and the Department of Housing and Urban Development, according to the survey.

The Best Places to Work Index has been conducted every year since 2003 by by the Partnership for Public Service and American University's Institute for the Study of Public Policy Implementation.

Here are the best and places to work.

10 Best Federal Agencies To Work For

1. Nuclear Regulatory Commission

2. Government Accountability Office

3. Federal Deposit Insurance Corporation

4. Smithsonian Institution

5. National Aeronautics and Space Administration

6. Social Security Administration

7. Department of State

8. General Services Administration

9. Department of Justice

10. Intelligence Community

10 Worst Federal Agencies To Work For

1. Department of Housing and Urban Development

2. National Archives and Records Administration

3. Department of Education

4. Small Business Administration

5. Department of Homeland Security

6. Equal Employment Opportunity Commission

7. Department of Transportation

8. Department of Agriculture

9. Securities and Exchange Commission

10. Department of Labor

<Source: jobsearch.about.com>