OPM Expert and Consultant Appointments — Federal Hiring Authority for Temporary Technical Experts
Legal Authority
- 5 U.S.C. § 3109 — Expert and consultant employment authority; authorizes agencies to hire experts and consultants outside the competitive service examination process when specifically authorized by appropriation or other statute; sets the basic framework for intermittent, temporary technical appointments
- 5 CFR Part 304 — OPM implementing regulation; defines "expert" and "consultant," governs pay-setting and the EX-IV daily rate cap, establishes annual reporting requirements and agency internal oversight obligations
Key Mechanics
Expert and consultant appointments under 5 U.S.C. § 3109 allow agencies to hire highly specialized individuals on a temporary or intermittent basis without going through the competitive civil service examination process. Unlike permanent appointments, these positions are excepted service roles that confer no career status, competitive standing, or retirement credit. Two conditions must be met before an agency can use the authority: (1) the agency's appropriation or other enabling statute must specifically authorize use of § 3109, and (2) the position must genuinely require only intermittent or temporary employment — not a permanent need dressed up as temporary. The distinction between "expert" (someone with deep specialization in a narrow field, demonstrated through research, publications, or professional practice) and "consultant" (someone with broad administrative or technical knowledge advising the agency) matters for defining the role but not for pay purposes. Pay is set on an hourly or daily basis using administrative judgment and market comparison, but may not exceed the daily equivalent of Executive Schedule Level IV ($197,200 annually in 2026, roughly $756/day) in any single day — a hard cap that applies even across simultaneous appointments at multiple agencies. OPM requires agencies to report annually on every paid expert/consultant including days worked and total pay, and to maintain internal controls and HR documentation demonstrating each appointment's compliance.
Current Rule (2026)
| Parameter | Value |
|---|---|
| Citation | 5 CFR Part 304 |
| Issuing agency | Office of Personnel Management (OPM) |
| Statutory authority | 5 U.S.C. § 3109 |
| Last major amendment | No recent Federal Register amendments |
What This Rule Does
Federal agencies sometimes need highly specialized technical or policy expertise for a specific project or short-term period — a world-leading epidemiologist to advise on disease response, a former industry executive to help structure a regulatory framework, or a computer scientist with niche cybersecurity skills. These roles don't fit the typical civil service hiring model, which assumes permanent or long-term employment and full-time competitive examination processes.
Five U.S.C. § 3109 provides an alternative: the expert and consultant appointment authority. When Congress authorizes an agency to use this authority in an appropriation or other statute, the agency may appoint qualified individuals on an intermittent or temporary basis outside the competitive service examination process. Five CFR Part 304 governs how agencies use this authority — who qualifies as an "expert" or "consultant," what they can be paid, and what oversight requirements apply.
Key Provisions
- § 304.101 — Scope: applies to expert and consultant appointments under 5 U.S.C. § 3109; does not apply to expert appointments made under other authorities or to contracts for personal services; use of this authority requires specific statutory authorization (an appropriation or other law permitting the agency to use § 3109)
- § 304.102 — Definitions: "expert" means a person who has expertise in a specialized field that is relevant to a specific agency program or project — someone whose knowledge is significantly above that of a generalist, typically demonstrated through education, research, publications, or professional practice; "consultant" means a person who provides valuable and pertinent advice drawn from a high degree of broad administrative, professional, or technical knowledge or experience; the distinction matters because consultants typically advise while experts may perform work directly
- § 304.103 — Appointment conditions: an agency may appoint a qualified expert or consultant for a position requiring only intermittent or temporary employment; the appointment is excepted from competitive examination requirements; appointees do not acquire competitive status or other career civil service rights from the appointment
- § 304.104 — Pay-setting: the head of the agency, or their designee, sets the rate of basic pay on an hourly or daily basis using administrative judgment; the rate must be appropriate to the expertise required and the market for comparable services; pay is subject to the limitations in § 304.105
- § 304.105 — Pay limits: unless specifically authorized otherwise, agencies may not pay an expert or consultant more than the daily or hourly equivalent of the rate for Executive Level IV (the standard cap for federal expert/consultant pay) in any single day; this cap applies even if the person is providing services to multiple agencies; it prevents circumvention of normal Executive Schedule pay limits through multiple simultaneous appointments
- § 304.106 — Pay adjustments: the employing agency may adjust pay after initial appointment and may establish internal policies on the amount and timing of adjustments, subject to the § 304.105 limitations; agencies may use factors such as years of experience, specialized qualifications, and market comparisons to justify adjustments
- § 304.107 — Annual reporting: each agency must report annually to OPM the number of days each paid expert or consultant was employed and the total amount paid; this transparency requirement helps OPM monitor use of the authority across government
- § 304.108 — Internal oversight: each agency using § 3109 must establish and maintain a system of internal controls to ensure compliance, including training for HR staff and hiring managers, documentation requirements, and periodic review of appointments
How It Affects You
If you are a subject matter expert considering a temporary federal appointment, an expert or consultant appointment under 5 U.S.C. § 3109 can provide federal employment without requiring you to compete through the standard merit examination process. These positions are typically short-term, intermittent (work as-needed rather than every day), and paid on a daily or hourly rate set by the agency. You do not acquire permanent civil service rights, career status, or retirement credit from the appointment — it is genuinely temporary.
Pay is capped at the Executive Level IV daily rate (EX-IV is $197,200 annually in 2026, which translates to roughly $756 per day). Agencies may not pay above this cap in any single day regardless of who the expert is or how urgently the expertise is needed, unless Congress has specifically authorized a higher rate for the agency.
If you work in federal HR, expert and consultant appointments require documented justification that the person meets the definition of "expert" or "consultant" and that the position genuinely requires intermittent or temporary employment. The appointment authority cannot be used as a workaround for permanent positions that should go through competitive examination. OPM scrutinizes use of this authority in agency compliance reviews.
Statutory authorization is a prerequisite. Not every agency has automatic authority to use § 3109. The appropriation or other legislation governing the agency must specifically authorize the use of expert/consultant appointment authority. Check your agency's appropriation language before using this authority.
Statutory Authority
This rule implements:
- 5 U.S.C. § 3109 — Expert and consultant employment authority; authorizes agencies to hire experts and consultants without competitive examination when specifically authorized by appropriation or other statute; sets the basic framework for intermittent, temporary technical appointments outside the career civil service
Recent Rulemakings
No major Federal Register amendments. The framework reflects longstanding OPM guidance on implementing § 3109.