Overview
Government screening is the most structured in the country and the most widely misunderstood. Almost everything gets called a security clearance, when in fact federal work involves several different determinations made under different rules by different authorities.
Getting the distinction right matters commercially, because a contractor bidding on federal work needs to know which one a role actually requires before pricing or staffing it.
A note on scope. This site is written for private sector employers, and the rest of it excludes rules applying only to government employment. This page is an exception, because so much of the work is done by public agencies. The main treatment is aimed at contractors, who are private employers. One section identifies what changes when the employer is a public agency itself.
Four Different Determinations
These are separate decisions, made against separate standards. A person can pass one and fail another, and a determination in one category does not carry into another.
| Credentialing | Whether someone may hold a federal identity credential for unescorted access to federal facilities and IT systems, under the presidential directive establishing that credential. It is about access, not trustworthiness with classified material. |
| Suitability | Whether a person’s character and conduct mean employment would protect the integrity or promote the efficiency of the service. It applies to competitive service positions and is governed by its own federal regulation. |
| Fitness | The equivalent determination for excepted service positions and for contractor personnel, made under agency specific standards rather than the suitability regulation. |
| National Security Eligibility | What people mean by a security clearance. Whether someone may access classified information, at Confidential, Secret, or Top Secret, with further compartmented access above that. |
Because the standards differ, conflicting outcomes within the same case are possible. Someone can be suitable for federal employment, or eligible for access to classified information, and still be ineligible for a particular assignment adjudicated under a stricter set of guidelines.
The Investigation Tiers
Federal investigations run on 5 tiers, and the quickest way to tell what someone actually holds is to look at the form they completed.
- Tier 1 covers low risk, non-sensitive positions and credentialing for facility and system access. Form SF-85. Scope is generally 5 years of employment, residence, and education.
- Tier 2 covers moderate risk public trust positions. Form SF-85P.
- Tier 3 covers national security eligibility at Confidential and Secret. Form SF-86.
- Tier 4 covers high risk public trust positions. Form SF-85P.
- Tier 5 covers national security eligibility at Top Secret and compartmented access. Form SF-86.
The form is the tell. An SF-86 means a national security investigation. An SF-85 or SF-85P means credentialing, suitability, or fitness, and is not a security clearance however it gets described on a resume.
Tiers 1, 2, and 4 are therefore public trust and credentialing. Tiers 3 and 5 are national security. Public trust investigations concentrate on suitability factors such as criminal history, employment verification, and financial responsibility. National security investigations go further into foreign contacts, allegiance, and counterintelligence concerns.
What This Means for Contractors
Most private employers encountering this are government contractors, and several points regularly cause problems.
The government sponsors and pays for security clearances. A contractor does not pay for its employees’ clearances, and an applicant never pays for their own. Any arrangement asking a worker to fund a clearance is wrong, and offers to sell one are a scam.
You cannot sponsor yourself into it. Clearance eligibility is tied to a sponsoring requirement. A contractor needs the contract and the facility arrangements in place, and an individual cannot obtain a clearance speculatively in advance of a role that requires one.
Requirements arrive by contract. The screening standard for a contract role is set by the contracting agency, and it flows down to subcontractors. A gap anywhere in that chain is a gap on the contract.
Reciprocity exists but is not automatic. An eligibility determination made by one agency is generally intended to be accepted by another, which avoids duplicate investigations. In practice transfers still take time and agencies vary in how they apply it.
Continuous Vetting
The model has changed fundamentally, and screening policies written a decade ago do not reflect it.
Periodic reinvestigations on a 5 or 10 year cycle are being replaced by continuous vetting, which runs automated record checks against criminal, terrorism, financial, and public records databases on an ongoing basis throughout a person’s eligibility. When a check produces an alert, it is reviewed and acted on.
Two consequences follow for employers. A cleared worker’s record is effectively monitored in near real time rather than examined on a calendar, so an arrest or a financial event surfaces quickly rather than at the next reinvestigation. And because issues can arise years into service, a contractor needs a process for responding when one does, not just for onboarding.
The Federal Investigation Is Not Your Background Check
Contractors frequently assume that a cleared employee has been screened for their purposes. That is a mistake in both directions.
A federal investigation is conducted for the government’s purposes, adjudicated against government standards, and the employer generally does not receive the underlying report. It tells you the person was found eligible. It does not tell you what was found, and it does not answer the questions an employer asks for its own reasons.
So a contractor still runs its own employment background check, under the same rules as any private employer. Disclosure, written authorization, and the process before rejecting someone all apply, and the fact that a federal investigation exists changes none of it. Our FCRA overview covers those obligations.
The reverse also holds. An employer’s own check finding something does not by itself affect a person’s federal eligibility, which is determined by the adjudicating authority rather than by the employer.
What Changes for Public Agencies
Agencies employing directly face 3 things private contractors do not.
- Constitutional protections apply to employees. A public employer is a government actor, so free speech and privacy protections that do not restrict a private company do restrict an agency. This matters most for social media and off duty conduct.
- Due process attaches to many positions. Public employees frequently hold a property interest in continued employment, bringing notice and hearing rights that at will employment does not, and suitability actions carry their own procedural requirements.
- Fair chance rules often reached public hiring first. Many states applied ban the box to public employers years before, or instead of, private ones, so a state may have no private sector rule while having one for agency hiring.
Common Mistakes
- Calling a public trust investigation a security clearance, which misprices roles and misleads candidates.
- Assuming a federal investigation satisfies your own screening obligations.
- Asking a worker to pay for a clearance, or believing one can be bought.
- Treating reciprocity as instant when planning a start date.
- Screening at onboarding only, when continuous vetting means issues arise mid engagement.
- Failing to flow contract requirements down to subcontractors.
- Skipping the rejection process because a federal determination drove the outcome.
For Job Seekers in Government Work
- Check which form you completed. An SF-86 means a national security investigation. An SF-85 or SF-85P means credentialing, suitability, or fitness, and describing it as a clearance on a resume will not survive scrutiny.
- You never pay for a clearance. The government sponsors and funds it. Anyone offering to sell you one is running a scam.
- Answer the forms completely and accurately. These become permanent government records, and a false statement can lead to removal, debarment, and criminal liability entirely separate from whatever you were trying to conceal.
- Disclosure is usually survivable. Concealment often is not. Adjudicators weigh candor heavily, and the omission is frequently more damaging than the underlying issue.
- Expect ongoing monitoring. Continuous vetting means new arrests, financial events, or other flags surface during your eligibility rather than at a scheduled review.
- Your employer still runs its own check. That is a separate process with its own rights, including a copy of the report before an adverse decision.
- If a report is wrong, dispute it. Our guide to disputing a background check covers the process.
Best Practices
- Identify which determination each role actually requires before pricing or posting it
- Use the form type to establish what a candidate genuinely holds
- Run your own employment screening separately, with its own disclosure and authorization
- Never ask a worker to fund a clearance or a federal investigation
- Build realistic timelines rather than assuming reciprocity is immediate
- Have a process for responding to a continuous vetting issue mid engagement
- Flow contract screening requirements down to every subcontractor tier in writing
- Follow the standard rejection process where a consumer report contributed to your decision