Damage level: "Damage" to national security
Timeline: 1-3 months
Use case: Baseline level. Rarely required for senior technical roles. Most common in administrative or support positions at defense contractors.
Damage level: "Serious damage" to national security
Timeline: 3-6 months
Use case: Most common in defense industry. Required for satellite programs, missile defense, and military space operations.
Damage level: "Exceptionally grave damage"
Timeline: 6-12 months
Use case: Requires SSBI with interviews of employers, neighbors, and references. Needed for sensitive satellite and defense programs.
Damage level: Compartmented intelligence access
Timeline: 12-18 months
Use case: Access to signals intelligence, imagery intelligence, and classified satellite systems. Must be "read into" compartments. Highest salary premium.
### Confidential
Baseline level. Unauthorized disclosure could cause "damage" to national security. Rarely required for senior technical roles. Investigation timeline: 1-3 months.
### Secret
Most common in defense industry. Unauthorized disclosure could cause "serious damage." Most satellite programs, missile defense, and military space operations require
SpaceX — Falcon 9, Dragon, Starship, Starlink
Rocket Lab — Electron, Neutron, most satellites
Planet Labs — Earth observation constellation
Spire Global — Weather and maritime tracking
NASA civil servants — Most positions
Commercial programs, international collaboration, ability to publish your work openly.
NRO — Classified reconnaissance satellites
MDA — Missile defense sensors and interceptors
Space Force — Military space operations
NGA — Geospatial intelligence programs
Defense contractors — Classified programs
Premium compensation, access to the most technically demanding programs in space.
### Jobs That Typically Don't Require Clearances
**SpaceX** -- Falcon 9, Dragon, Starship, Starlink are commercial. Most roles uncleared. Some Starshield positions require clearances but they are a minority.
**Rocket Lab** -- Electron, Neutron, most satellite programs are commercial.
**Planet Labs, Spire Global, Maxar** (commercial side) -- generally uncleared.
**NASA civil servants** -- most work without clearances, though some classified programs exist.
### Jobs That Typically Require Clearances
- NRO and NGA positions -- essentially all of them
- Missile defense (SMDC, MDA, contractors) -- almost always
1
SF-86 Submission
Complete the 127-page questionnaire covering 10 years of history. Employer submits your package to DCSA. Allow 2-4 weeks to gather all information.
2
Background Investigation
DCSA investigators verify your SF-86 data: employment records, financial records, criminal checks, foreign travel verification. Takes 1-6 months depending on clearance level.
3
Subject & Reference Interviews
Investigators interview you, your listed references, current and former neighbors, coworkers, and supervisors. For TS/SCI, expect expanded interviews.
4
Adjudication
An adjudicator reviews the completed investigation against the 13 national security guidelines. Weighs mitigating factors against concerns. Takes 1-3 months.
5
Clearance Granted
You are notified through your employer's security office. For TS/SCI, additional read-ins to specific compartments happen after base clearance is granted.
### Interim Clearances
Some applicants receive provisional access while the full investigation is pending. More likely if your background is clean.
## What Disqualifies You
### Dual Citizenship
Holding foreign citizenship complicates things. Actions showing foreign preference (voting in foreign elections, maintaining foreign passports) are serious issues. Naturalized citizens can still get clearances but investigation is more thorough.
### Foreign Contacts and Family
Family in adversarial countries (China, Russia, Iran) complicates adjudication significantly. Does not automatically disqualify -- investigators assess the relationship nature, frequency of contact, and whether family holds government positions.
### Drug Use
Marijuana within 12 months is generally disqualifying. Use in past 7 years requires explanation. Legal state status does not change federal assessment. Other drugs are more serious.
Marijuana and Federal Clearances
Even in states where marijuana is legal, it remains a Schedule I substance under federal law. Security clearance adjudication follows federal standards only. Recent marijuana use within 12 months is generally disqualifying regardless of your state's laws. If you are pursuing a clearance, stop all use immediately and be prepared to explain any past use honestly on your SF-86.
### Financial Problems
Significant unpaid debt, bankruptcy, or financial irresponsibility raises concerns about susceptibility to bribery. One of the most common and most fixable disqualifiers -- demonstrate concrete steps to address problems.
Financial Issues Are the #1 Fixable Disqualifier
Unresolved debt and financial irresponsibility are among the most common reasons for clearance denials — but also the most fixable. Before applying, pull your credit reports, set up payment plans for outstanding debts, and document every step you take. Adjudicators look for a pattern of responsibility, not a perfect financial history. Proactive repayment plans are strong mitigating evidence.
### Criminal History
Felonies are serious. Multiple misdemeanors suggest patterns. Minor infractions from years ago with no pattern are less problematic.
### Mental Health
Seeking treatment is not disqualifying. The concern is behavior demonstrating judgment problems, not the act of getting help.
## How to Get Your First Clearance
You cannot obtain a clearance independently. A company must sponsor you.
### Entry-Level Paths
Companies that routinely sponsor new hires without clearances:
- **Northrop Grumman** -- actively recruits new graduates for cleared programs
- **Lockheed Martin** -- hires interns and graduates into cleared programs
- **L3Harris and Raytheon** -- have pathways for hiring without existing clearance
- **SAIC, Leidos, Booz Allen, CACI** -- regularly hire and sponsor new graduates
Look for "Clearable" Job Postings
If you don't have a clearance yet, search for postings that say "ability to obtain" or "clearable" rather than "active clearance required." These employers are willing to sponsor your investigation. Large defense contractors like Northrop Grumman, Lockheed Martin, SAIC, and Booz Allen routinely sponsor new graduates — this is one of the best paths into classified space programs.
### Clearance-Friendly Positions
Entry points that don't strictly require clearances but lead to sponsorship:
- Administrative or coordination roles at defense contractors
- Unclassified engineering at companies with both classified and unclassified programs
- Internships at cleared facilities
## Clearance Portability
Clearances belong to the government, not your employer. When you leave, your clearance becomes inactive. If you move to a new cleared employer within approximately 24 months, it can typically be reinstated without full reinvestigation.
After 24 months inactive, full reinvestigation is more likely needed.
Clearance Portability: The 24-Month Window
Your security clearance belongs to the federal government, not your employer. When you leave a cleared position, your clearance goes inactive — but it can be reactivated by a new employer within roughly 24 months without a full reinvestigation. After that window closes, you will likely need to go through the entire investigation process again. If you are transitioning between cleared employers, minimize the gap.
## Salary Premium
Cleared positions pay more than equivalent uncleared roles:
- **Secret**: 5-15% above uncleared compensation
- **Top Secret**: 10-20%
- **TS/SCI**: 15-25% or more
- **Active TS/SCI with polygraph**: 30%+ for hard-to-find specialties
Clearance Salary Premium Over Uncleared Roles
The premium is driven by supply restriction -- you must be a U.S. citizen who has passed a background investigation.
## Common Myths
Past Marijuana Use Is Not an Automatic Disqualifier
One of the most common myths is that any history of marijuana use permanently disqualifies you. In reality, past use that is disclosed honestly and is not recent (generally more than 12 months ago) is frequently mitigated during adjudication. Candor on your SF-86 matters far more than isolated past use. Lying about it, however, is disqualifying.
**"You need to be born in the U.S."** -- False. Naturalized citizens are eligible for all levels.
**"I can apply on my own."** -- False. You must be sponsored by an employer.
**"I used marijuana in college and now I'm disqualified."** -- Usually false. Disclosed honestly and not recent, it is frequently mitigated. Candor matters more than isolated past use.
**"Foreign contacts mean automatic denial."** -- False. Nature and recency of contacts matter, not their mere existence.
**"A polygraph is required for all clearances."** -- False. Only certain