- How the FL-SO-D Exam Domains Work
- All 18 Domains at a Glance
- High-Weight Domains You Can't Skip
- Mid-Weight Domains Worth Solid Review
- Low-Weight but Still Tested Domains
- Question Format and the True/False Rule
- Building a Domain-Based Study Timeline
- Who Hires Class D Officers and Why Domains Matter
- Registration, Testing Logistics, and Your Certificate
- FAQ
- The approved assessment has 170 questions across 18 domains; 128 correct answers pass.
- Domain 1 (Legal Aspects) carries 26 questions - the single largest domain on the exam.
- Domain 13 (Medical Emergencies) and Domain 5 (Observation and Incident Reporting) each carry 17-19 questions.
- No subject area may be more than 50% true/false questions, so expect scenario-based items too.
How the FL-SO-D Exam Domains Work
The Florida Class "D" Security Officer License exam isn't a walk-in, schedule-it-yourself test. It's administered inside your approved training course by a licensed Class DS school, and it's tied directly to the 40-hour curriculum defined in the Security Officer Training Curriculum Guide P-01878 (revision 11/2018), which is incorporated into Rule 5N-1.140 as Ref-10454. That reference document is where the 18 domains you'll see below come from - they aren't a third-party study company's invention, they're the state's own assessed-subject list.
Approved assessments total 170 questions, and you need 128 correct to pass. Testing happens throughout the course or at its completion, with a minimum aggregate testing time of two hours - that's a floor, not a ceiling, so don't assume you're racing a countdown clock. If you want a deeper walkthrough of scoring mechanics, see the FL-SO-D Passing Score 2026 guide, and for a broader first-attempt strategy, the FL-SO-D Study Guide 2026 covers pacing and review habits in more depth.
All 18 Domains at a Glance
Below are the official 18 assessed subjects with their question allocations out of the 170-question exam. These numbers come straight from the approved curriculum guide and should be your primary tool for prioritizing review time.
| Domain | Subject Area | Questions |
|---|---|---|
| 1 | Legal Aspects of Private Security | 26 |
| 2 | Role of Private Security Officers | 9 |
| 3 | Security Officer Conduct | 13 |
| 4 | Principles of Communications | 9 |
| 5 | Observation and Incident Reporting | 17 |
| 6 | Principles of Access Control | 4 |
| 7 | Patrols | 4 |
| 8 | Principles of Safeguarding Information | 4 |
| 9 | Physical Security | 4 |
| 10 | Interviewing Techniques | 4 |
| 11 | Emergency Preparedness | 6 |
| 12 | Safety Awareness | 11 |
| 13 | Medical Emergencies | 19 |
| 14 | Terrorism | 11 |
| 15 | Event Security and Special Assignments | 4 |
| 16 | Communications Systems | 4 |
| 17 | Special Issues | 17 |
| 18 | Introduction to Weapons | 4 |
Add those up and you get the full 170-question exam. If you're wondering whether this workload is genuinely tough or manageable with steady prep, the How Hard Is the FL-SO-D Exam? guide breaks down difficulty by domain in more detail.
High-Weight Domains You Can't Skip
Five domains account for a large share of your 170 questions: Legal Aspects (26), Medical Emergencies (19), Observation and Incident Reporting (17), Special Issues (17), and Security Officer Conduct (13). Together these five domains represent over half the exam. Master these first.
Domain 1: Legal Aspects of Private Security
This is the largest single domain at 26 questions, and it's the backbone of everything a Class D officer does. Expect coverage of the legal limits of a security officer's authority, detention and arrest boundaries, use-of-force considerations, and the statutory framework governing private security in Florida.
- Understand the difference between a security officer's authority and that of sworn law enforcement
- Know when detention is legally permissible and when it isn't
- Be comfortable with scenario questions, not just definitions
Domain 13: Medical Emergencies
At 19 questions, this domain tests your ability to recognize and respond appropriately to medical situations that arise on post - from basic first response steps to knowing the limits of what an unlicensed officer should attempt before EMS arrives.
- Recognize signs of common medical emergencies
- Know your role versus the role of emergency medical personnel
- Practice questions that describe a scenario and ask for the correct immediate action
Domain 5: Observation and Incident Reporting
Seventeen questions cover the skill that defines the job itself: noticing what's abnormal and documenting it clearly. Expect questions on report writing accuracy, observation techniques, and what details belong in an incident report.
Domain 17: Special Issues
Also worth 17 questions, this domain is broader and can cover a range of situational topics tied to the day-to-day realities of security work. Because it's less narrowly defined than domains like Access Control, review your course materials closely rather than relying on general assumptions about what "special issues" might mean.
Domain 3: Security Officer Conduct
Thirteen questions assess professional standards, ethics, and the behavioral expectations placed on a licensed Class D officer. This domain overlaps conceptually with Domain 1 but focuses more on how an officer should carry themselves than on legal boundaries.
Key Takeaway
Domains 1, 13, 5, 17, and 3 together make up 92 of the 170 questions - more than half the exam. If your review time is limited, concentrate there first.
Mid-Weight Domains Worth Solid Review
A second tier of domains carries meaningful but smaller weight: Role of Private Security Officers (9), Principles of Communications (9), Safety Awareness (11), and Terrorism (11). These 40 combined questions still matter for reaching the 128-correct threshold.
Domain 2: Role of Private Security Officers
Covers the fundamental purpose and scope of the position - what a Class D officer is hired to do, and equally important, what falls outside that scope.
Domain 4: Principles of Communications
Verbal and written communication standards, radio protocol basics, and clear reporting language. This domain pairs naturally with Domain 16 (Communications Systems) and Domain 5 (Observation and Incident Reporting) in your review sessions.
Domain 12: Safety Awareness
General workplace and post safety principles - hazard recognition, safe practices while on duty, and situational awareness that prevents incidents before they start.
Domain 14: Terrorism
Recognition of suspicious activity indicators and the officer's reporting responsibilities related to potential terrorism-related concerns on a post.
Low-Weight but Still Tested Domains
Nine domains sit at 4-6 questions each: Access Control, Patrols, Safeguarding Information, Physical Security, Interviewing Techniques, Emergency Preparedness, Event Security and Special Assignments, Communications Systems, and Introduction to Weapons. Individually small, but collectively these nine domains still add up to 43 questions - enough to matter.
- Domain 6 - Principles of Access Control: credential checks, controlling entry/exit points, and denying unauthorized access.
- Domain 7 - Patrols: patrol techniques, documentation, and consistent post coverage.
- Domain 8 - Principles of Safeguarding Information: confidentiality obligations and protecting sensitive information encountered on the job.
- Domain 9 - Physical Security: barriers, locks, lighting, and other physical protective measures.
- Domain 10 - Interviewing Techniques: gathering accurate information from witnesses or involved parties.
- Domain 11 - Emergency Preparedness: planning for and responding to emergency situations (6 questions).
- Domain 15 - Event Security and Special Assignments: crowd-related and assignment-specific duties.
- Domain 16 - Communications Systems: equipment and systems used to relay information on post.
- Domain 18 - Introduction to Weapons: basic weapons awareness. Note that a Class D license alone does not authorize carrying a firearm for security duties - that's a separate credential entirely.
Question Format and the True/False Rule
One structural detail candidates often overlook: no more than 50% of the questions in any given subject area may be true/false. That means at least half of every domain's questions come in another format - typically multiple choice built around a short scenario. If your practice materials are stacked with true/false items and nothing else, they don't reflect the real exam structure.
This matters for how you prepare. Memorizing isolated facts helps with true/false recall, but the multiple-choice, scenario-driven half of the exam rewards understanding of context - knowing not just what the rule is, but when and how it applies on post. Practicing with mixed-format questions on a platform like our FL-SO-D practice test site gets you comfortable switching between both styles under realistic conditions.
Building a Domain-Based Study Timeline
Because your assessment is embedded in the 40-hour approved course rather than scheduled separately, your "study timeline" really runs alongside the course itself, plus whatever extra review you do before and after class sessions.
Foundation Domains
- Focus extra review on Domain 1 (Legal Aspects, 26 questions) as it's introduced
- Start a running list of Domain 3 (Conduct) standards as they come up in lecture
High-Frequency Field Skills
- Drill Domain 5 (Observation and Incident Reporting) and Domain 13 (Medical Emergencies) with scenario practice
- Cross-reference Domain 17 (Special Issues) material against your course handouts, since it's broader in scope
Mid-Weight Cleanup
- Review Domains 2, 4, 12, and 14 together - none require deep dives, but all deserve a pass
- Use short recall sessions rather than long study blocks for these lighter domains
Full-Spectrum Review
- Run a full practice set covering all 18 domains proportionally to their question counts
- Revisit the low-weight domains (6-11, 15, 16, 18) briefly so nothing is a total blind spot
If you'd rather follow a more detailed week-by-week plan built specifically around first-attempt success, the FL-SO-D Study Guide 2026 expands on this approach. And if you're still confirming you meet eligibility before enrolling, check the FL-SO-D Requirements 2026 guide first.
Who Hires Class D Officers and Why Domains Matter on the Job
The 18 domains aren't academic exercises - they map directly to what Class D officers actually do once licensed. Officers working retail, corporate, residential, and event-based posts rely daily on Domain 5 (Observation and Incident Reporting), Domain 6 (Access Control), and Domain 7 (Patrols). Officers assigned to venues and public gatherings lean on Domain 15 (Event Security and Special Assignments). Every officer, regardless of post, needs Domain 1 (Legal Aspects) and Domain 3 (Conduct) to operate within the boundaries of the license.
It's worth remembering that the Class D license alone does not authorize carrying a firearm for security duties - Domain 18 (Introduction to Weapons) is an awareness-level domain, not a firearms authorization. Officers who want armed roles need a separate license track entirely. For a fuller picture of where Class D officers actually work and how domain knowledge translates to the job, see FL-SO-D Jobs.
Registration, Testing Logistics, and Your Certificate
Unlike some licensing exams, there's no separate exam registration step to worry about - the assessment happens within your approved 40-hour course, delivered by a licensed Class DS school or training facility. Live-online instruction and testing are permitted, provided the school follows required instructor, identity, attendance, and platform safeguards. Self-paced practice on its own does not substitute for the approved course; think of independent practice tools as reinforcement for course content, not a replacement for it.
Upon successfully completing the course, you receive a school training certificate. For training completed on or after July 19, 2023, FDACS certificate verification is used as part of the license application process. From there, the license itself is valid for two years, with a renewal schedule listing a $45 fee plus $16.75 for fingerprint retention. For a full cost breakdown across training, application, and renewal, see FL-SO-D Certification Cost 2026. If you're trying to map out timing around your course and application, the FL-SO-D Exam Dates 2026 guide covers scheduling considerations, and a quick-reference summary of must-know facts lives in the FL-SO-D Cheat Sheet 2026.
Frequently Asked Questions
There are 18 assessed subject areas, drawn directly from the Security Officer Training Curriculum Guide P-01878, spanning 170 total questions.
Domain 1, Legal Aspects of Private Security, carries 26 questions - the largest single allocation on the exam.
No. The assessment is administered by your licensed Class DS school or training facility as part of the approved 40-hour course, not through a separately booked statewide exam vendor.
No. No more than 50% of the questions in each subject area may be true/false, so expect a mix of formats, including scenario-based multiple choice.
No. The Class D license alone does not authorize carrying a firearm for security duties, regardless of how well you score on Domain 18, Introduction to Weapons.