When a veteran lists "Active TS/SCI clearance with CI polygraph" on a resume, most hiring managers see a string of letters they do not fully understand. What they are looking at is a federal investigation that took years to complete, cost the government tens of thousands of dollars, and certifies that this person was found trustworthy enough to handle the nation's most sensitive information.
That credential is one of the most undervalued assets in the civilian hiring market. Companies that compete for cleared talent treat it as a premium. Companies that do not understand it treat it as a footnote. The difference between those two postures is often the difference between landing the hire and losing the contract.
If a candidate already holds an active clearance, your company inherits that investment at no cost and with no waiting period. For any role tied to a federal contract, that is not a nice-to-have. It is frequently the gating requirement that determines whether the candidate is billable on day one or sitting on the bench for twelve months.
The Three Levels, in Plain Language
Federal clearances come in three tiers, and the difference between them is the sensitivity of the information the holder is authorized to access.
Confidential. The entry level. It covers information whose unauthorized disclosure could cause damage to national security. Reinvestigation typically occurs on a long cycle.
Secret. The most common level in the defense workforce. It covers information whose disclosure could cause serious damage to national security. This is the baseline for a large share of contractor roles.
Top Secret. The highest standard tier, covering information whose disclosure could cause exceptionally grave damage. It requires a far deeper background investigation and is the level where the government's cost and timeline climb steeply.
Beyond Top Secret sit access designations rather than higher clearances. SCI stands for Sensitive Compartmented Information, and SAP stands for Special Access Program. These are read-in authorizations layered on top of a Top Secret clearance, and a candidate who holds them has cleared an additional bar most applicants never approach. A "CI polygraph" or "full-scope polygraph" notation signals an even more rigorous vetting path.
Why "Active" Is the Word That Matters Most
The single most important detail on a clearance line is its status, and it is the detail hiring teams most often miss.
An active clearance means the person is currently eligible and is being maintained in a cleared role. A current clearance means the underlying investigation is still within its validity window even if the person is not actively read in. A clearance that has lapsed beyond the reinstatement window may require a full reinvestigation, which puts you right back into the multi-month timeline you were trying to avoid.
A clearance is a perishable asset. Eligibility generally must be reactivated within roughly two years of separation from a cleared position to avoid a fresh investigation. A veteran who left service eighteen months ago with an active Top Secret is worth dramatically more to your timeline than one who let the same clearance lapse three years ago.
This is why a resume that simply says "TS/SCI" tells you less than you need. The screening question is whether it is active, current, or expired, and a hiring process that does not surface that distinction is leaving the most decision-relevant fact buried.
The Mistake That Costs You the Candidate
Here is the failure pattern. A keyword-based applicant tracking system scans a job description for terms like "Secret clearance" and "DoD contract." A qualified veteran writes their experience in military language, lists their clearance in an unusual format, or buries it at the bottom of a job entry. The system scores the resume below threshold and files it. No human ever reads it.
The clearance was the most valuable thing on the page, and the filter could not see it. We have written before about how automated systems reject qualified veterans on language alone, and clearances are where that failure gets most expensive. You are not just losing a good candidate. You are losing the one credential that would have made them billable immediately.
The opposite mistake is just as costly. A recruiter who does not understand the tiers may treat a Secret clearance and a TS/SCI with full-scope polygraph as roughly equivalent, route both into the same pile, and lose the higher-value candidate to a competitor who recognized exactly what they were holding.
How to Evaluate a Clearance Without Guessing
You do not need to become a security officer to screen cleared candidates well. You need a short, disciplined checklist.
Confirm the level against the requirement. Match the candidate's tier to what the contract genuinely requires. A Secret-cleared candidate cannot fill a TS/SCI billet on day one, and overshooting wastes premium talent on a role that does not need it.
Establish status before anything else. Active, current, or expired changes the entire value calculation. Ask directly and early. This is a yes-or-no question, not a sensitive disclosure, and candidates expect it.
Note access designations separately. SCI, SAP, and polygraph notations are not part of the base tier. Capture them as distinct line items, because they are often the exact thing a contract requires and the exact thing a keyword filter drops.
Respect the disclosure boundary. A candidate can tell you the level, the status, and the granting agency. They cannot and should not discuss the specific programs they supported or any classified detail. A candidate who guards that line is demonstrating exactly the discipline the clearance certifies.
Read the Capability, Not Just the Acronym
A clearance is shorthand for something larger. The investigation that produced it examined the person's finances, foreign contacts, personal conduct, and reliability under scrutiny. The government concluded this individual could be trusted with consequences. That judgment transfers to your workplace whether or not the role touches classified material.
The job of a screening process is to surface that signal rather than bury it. TrueScan HR reads a resume the way a senior hiring manager would, identifies a clearance regardless of how it is phrased, maps military experience to civilian requirements through Veteran Translation Mode, and tells you in writing what the candidate brings. The credential the federal government spent years building does not get filtered out because it was written in the wrong format.
The cleared veteran in your applicant pool already passed the hardest background check in the country. The only question is whether your hiring process is built to notice.
Thabiti Adams is a CISSP and CCSP certified cybersecurity professional and founder of Adams Cloud & Cybersecurity.