5 CFR § 319.402 - Scientific and professional positions.

---
identifier: "/us/cfr/t5/s319.402"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "5 CFR § 319.402 - Scientific and professional positions."
title_number: 5
title_name: "Administrative Personnel"
section_number: "319.402"
section_name: "Scientific and professional positions."
chapter_name: "OFFICE OF PERSONNEL MANAGEMENT"
subchapter_number: "B"
subchapter_name: "CIVIL SERVICE REGULATIONS"
part_number: "319"
part_name: "EMPLOYMENT IN SENIOR-LEVEL AND SCIENTIFIC AND PROFESSIONAL POSITIONS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "5 U.S.C. 1104, 3104, 3324, 3325, 5108, AND 5376. § 319.106 also issued under 5 U.S.C. 9201-9206 and Pub. L. 116-92, sec. 1122(b)(1)."
regulatory_source: "60 FR 6387, Feb. 2, 1995, unless otherwise noted."
cfr_part: "319"
---


# 319.402 Scientific and professional positions.

(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.