A public trust security clearance isn’t actually a security clearance at all. It’s a federal suitability determination for positions that carry significant responsibility but don’t involve access to classified information. The government uses the “public trust” label to describe jobs where an employee’s dishonesty, poor judgment, or misconduct could seriously harm agency programs, public safety, or taxpayer funds, and it screens applicants through a background investigation designed to test reliability, honesty, and financial responsibility rather than loyalty and vulnerability to foreign coercion.
The distinction matters because the two processes look similar from the outside and get lumped together in job postings. USAJobs states the point plainly: “Public Trust is a type of background investigation, but it is not a security clearance.”1USAJobs. What Are Background Checks and Security Clearances? A Confidential, Secret, or Top Secret clearance grants access to classified national security information and uses Standard Form 86, with heavy attention to foreign contacts and allegiances. A public trust determination uses Standard Form 85P and centers on your character, conduct, and finances. You also don’t need an agency to “sponsor” and hold a public trust status the way cleared employees do, though you are subject to reinvestigation and ongoing monitoring once you’re in.
Moderate Risk and High Risk Positions
Every federal position is designated high, moderate, or low risk based on how much damage an employee in that role could cause.2eCFR. 5 CFR 731.106 – Designation of Public Trust Positions and Investigative Requirements Only moderate and high-risk jobs are considered public trust positions.
Moderate-risk roles include work like processing government benefits, managing federal IT systems, or handling sensitive personal records. They trigger a Tier 2 investigation, formerly called a Moderate Risk Background Investigation. High-risk roles, where misconduct could cause exceptionally serious harm, cover policy-making positions, law enforcement duties, and fiduciary responsibilities involving large sums. Those trigger a Tier 4 investigation, formerly called a Background Investigation. The federal regulation specifically calls out policy making, major program responsibility, public safety and health, law enforcement, fiduciary duties, and access to or control of financial records as duties requiring a public trust designation.2eCFR. 5 CFR 731.106 – Designation of Public Trust Positions and Investigative Requirements Agencies use OPM’s Position Designation Tool to sort each job into the right tier.3U.S. Office of Personnel Management. Position Designation Tool
Filling Out the SF-85P
Both moderate-risk and high-risk applicants complete Standard Form 85P, the Questionnaire for Public Trust Positions.4U.S. Office of Personnel Management. Questionnaire for Public Trust Positions It’s submitted electronically through the eApp system on the National Background Investigation Services (NBIS) portal, which replaced the older e-QIP system. Your hiring agency initiates the process and grants you access.
The form asks for seven years of residential history with no gaps, seven years of employment history including supervisor names and reasons for leaving, education details with dates and school addresses, and personal references with full names and current contact information. Investigators verify all of it. Gather everything before you start. Applicants who submit incomplete or inconsistent answers and then try to fix them afterward are the ones whose files stall for months.
What the Investigation Actually Looks At
Every public trust investigation opens with a National Agency Check. That means a search of OPM’s investigative index, submission of your fingerprints to the FBI for a criminal history search, and a credit report pulled to flag unpaid debts, judgments, or other financial trouble.5United States Postal Service. Handbook EL-312 – Employment and Placement – 562 National Agency Check With Inquiries Investigators also verify your employment, education, and references.
What happens next depends on the tier. A Tier 2 investigation for moderate-risk positions relies mostly on written inquiries and database checks. A Tier 4 investigation for high-risk positions goes further, with in-person interviews of your references, former coworkers, and neighbors. If you have significant time abroad or notable foreign contacts, expect follow-up questions there too.
What Can Disqualify You
Adjudicators aren’t hunting for a spotless record. They’re looking for patterns that would make you a risk in the job. Federal regulations list nine factors that can support a finding of unsuitability:6eCFR. 5 CFR 731.202 – Criteria for Making Suitability Determinations
- Misconduct or negligence in prior employment
- Criminal conduct
- Intentional false statements or deception during the application
- Dishonest conduct, including fraud, theft, and deliberate financial irresponsibility
- Excessive alcohol use without evidence of rehabilitation
- Illegal drug use without evidence of rehabilitation
- Acts designed to overthrow the U.S. government by force
- Any statutory bar to employment in the position
- Violent conduct
No single factor is automatically disqualifying in most cases. Adjudicators weigh the seriousness of the conduct, how recent it was, the surrounding circumstances, your age at the time, and any evidence of rehabilitation.7Center for Development of Security Excellence. Suitability Factors An old DUI you’ve clearly moved past matters far less than a pattern of financial trouble that continued into last year.
The factor that sinks the most applications isn’t criminal history. It’s the third one: lying or leaving something out. Investigators expect imperfect backgrounds. They don’t expect deception, and concealment becomes its own disqualifying issue on top of whatever you tried to hide. Disclose the difficult items.
Marijuana and Other Drug Use
Federal law still classifies marijuana as illegal no matter what your state has done, and Executive Order 12564 requires federal employees to refrain from illegal drug use on and off duty.8National Archives. Executive Order 12564 – Drug-Free Federal Workplace Past marijuana use, on its own, is not automatically disqualifying. OPM has told agencies that finding someone unsuitable solely because of prior marijuana use would be inconsistent with suitability regulations. The decision has to be case by case, weighing recency, circumstances, and any connection to the integrity of the service.
Current use is a different matter. If you’re actively using marijuana or any other illegal drug when you apply, you are not considered suitable. Agencies also have authority to conduct drug testing based on reasonable suspicion, after an accident, or as part of rehabilitation follow-up.8National Archives. Executive Order 12564 – Drug-Free Federal Workplace Stop well before you apply, be honest about past use on the questionnaire, and don’t assume state-level legalization changes anything at the federal level. It doesn’t.
How Long It Takes
Longer than you’d expect. As of mid-2025, the average end-to-end processing time for background investigations was roughly 243 days. Simpler cases resolve faster, and complex histories run longer. The main variables are how many addresses, employers, and references need verification and how quickly those sources respond.
Some agencies will grant an interim or provisional determination that lets you start work with limited access while the full investigation continues. Whether that’s available depends on agency policy, your contract, and a preliminary review of your file. Ask your hiring contact early rather than assuming you’ll be at your desk on day one.
Reinvestigation and Continuous Vetting
Approval isn’t the finish line. Public trust holders in both Tier 2 and Tier 4 positions are reinvestigated every five years. Under the Trusted Workforce 2.0 initiative, the government is also rolling out continuous vetting, which runs automated checks against criminal, financial, terrorism, and public records databases throughout your employment instead of waiting for the next scheduled review.9Defense Counterintelligence and Security Agency. Continuous Vetting
When continuous vetting flags something, DCSA reviews it for validity. If the concern holds up, investigators and adjudicators gather more facts and decide whether you can stay in your role. Outcomes range from mitigation to suspension or revocation. A bankruptcy filing, an arrest, or a major financial event years into your career can trigger a review. The reliability that got you through the initial investigation has to hold.
If You Are Found Unsuitable
You have the right to challenge an unfavorable determination, and the route depends on who issued it.
When OPM itself makes a government-wide suitability determination against you, you can appeal to the Merit Systems Protection Board.10U.S. Merit Systems Protection Board. Jurisdiction File with the MSPB regional or field office covering your geographic area. An administrative judge issues an initial decision, and the full Board can review it on petition.
When an individual agency issues the determination rather than OPM, your options depend on that agency’s internal procedures. If you’re in a bargaining unit with a negotiated grievance procedure, that may be your route instead of the MSPB, unless the action involves an adverse personnel action, discrimination, or another prohibited personnel practice.10U.S. Merit Systems Protection Board. Jurisdiction Either way, the determination should include written notice of the reasons and your right to respond. If it doesn’t, request that in writing right away.