These links are also related to Qualification Standards
Citizenship (5 CFR Part 7, §7.3) and Employment of Non-Citizens Information for agencies considering non-citizens for Federal employment. Agencies must follow the usual selection procedures and the requirements of the immigration law, the appropriations act ban on paying certain non-citizens, an executive order restriction on appointing non-citizens in the competitive service, and the agency's authorization and appropriations laws.
Qualification Requirements (5 CFR Part 338) - Regulatory language regarding citizenship, competitive service appointment, and the prohibition of maximum-age requirements.
This page can be found on the web at the following url: http://www.opm.gov/qualifications/RelatedLinks-More.asp