Scientific and professional positions
Primary source
Verbatim text below is from the Electronic Code of Federal Regulations (eCFR), a public-domain U.S. government work. Always verify the current version with the eCFR before relying on it for any legal matter.
Full Text
(a) ST positions are filled without competitive examination under 5 U.S.C. 3325.
(b) ST positions are not subject to the citizenship requirements in 5 CFR part 338, subpart A. Agencies, however, must observe any restrictions on the employment of noncitizens in applicable appropriations acts.
(c) ST employees acquire competitive status immediately upon appointment. They are not required to serve a probationary or trial period.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.