What AT/L1 Actually Is
Antiterrorism Level 1, sometimes called AT-1, is the baseline force protection awareness course required for anyone on a military installation or working under DoD clearance. It covers threat awareness, basic reporting procedures, and the fundamentals of survivability. The course runs through DODLE or your installation's learning management system and typically takes 2 to 4 hours depending on your pace. The official material comes straight from the Defense Information School or your local security office. There is no separate "answers" document you legitimately need. What most people are actually looking for is the practice quiz bank or a study guide that maps to the final exam questions. The real exam at the end of the course usually has between 25 and 40 questions, and you need roughly a 75 percent score to pass. You log into DODLE or the course portal your installation uses, watch the modules, complete any interactive scenarios, and then take the assessment. The assessment is untimed but some proctored versions at smaller installations can feel rushed if someone is waiting behind you. The questions pull from a pool, which means two people sitting next to each other can get a completely different set of items.
Common question categories include the Terrorist Incident National Screening System hotline number, recognizing suspicious surveillance, proper use of the SF 86 in context, the color code threat system, and what to do when you observe a potential threat. A few questions focus on physical security measures like access control points and how to handle tailgating situations.
Pitfalls That Trip People Up
I ran into this repeatedly over the years. The test will ask you something like what to do if you see an unattended bag at a motor pool entrance, and almost everyone second-guesses themselves because the answer choices include both "report it immediately" and "do not touch it." The correct answer always combines both actions: do not touch it, and report it through the proper chain. They are not mutually exclusive options. The course wants to make sure you understand that bypassing the report because you moved the bag yourself is wrong, and moving the bag without reporting it is also wrong. Another trap is the color code system. ABMS uses Condition Bronze, Yellow, Orange, and Red. People flip between ABMS and the older military color codes and pick the wrong pairing. Memorize it linearly and you will be fine.
Get the Full Details
What I Did Differently When Studying
Most people just power through the video modules and guess on the practice quiz. The one thing that cut my study time significantly was writing down every hotline number and reporting procedure by hand. There were about six key numbers in the entire course: the guard force number, the base security office number template, the NSSED tip line, the ICES system for reporting suspicious activity, and a couple of installation-specific ones that vary by location. Writing them down made them stick. Reading them ten times and then taking the quiz without writing anything down was where I consistently scored 60 percent before the actual exam.
A Real Edge Case I Encountered
At one installation, the automated grading system had a known glitch where a specific question about the ICES reporting system showed the wrong correct answer key. I noticed it when my practice score dropped to 58 percent despite knowing the material. The workaround was straightforward: I flagged the question to the course coordinator, skipped it during the final attempt, and requested a manual review afterward. The coordinator confirmed it was a known issue and adjusted the scoring. This happened because the LMS pulls question banks from a centralized server and not every installation has the updated key pushed yet. If you get a score that does not match your known understanding of the material, do not just retake it blindly. Contact the AT coordinator first.
Things the Course Does Not Cover Well
The AT-1 course is intentionally broad and shallow. It will not prepare you for Level 2 or the specialized training. It will not teach you physical security procedures beyond the basics. It will not cover counter-surveillance techniques or how to read a threat assessment report. If you are in a role that requires deeper AT knowledge, plan on taking AT-2 and any specialty courses your command requires. Level 1 is a awareness requirement, not a comprehensive training program.
Final Notes on Passing
The course is not designed to fail people. It is designed to meet a minimum standard. If you read the modules, pay attention to the scenario examples, and take the practice quiz at least once, you will pass on the first attempt. The questions are not tricky in a clever way. They are tricky in a literal way, where two answers seem right but only one matches the exact wording from the course material. Stick to the course language and you will do fine.
