ATRRS Login & Course Registration
ATRRS (Army Training Requirements and Resources System) is the Army's official system for training course records and registration — schools, seats, and reservations. Log in with your CAC, or an Alternate Login ID if a CAC reader isn't available.
Open ATRRS →How to Register for a Course
- Log in at atrrs.army.mil with your CAC (or Alternate Login ID).
- On the homepage, find the ATRRS Quick Links section.
- Select Training Registration and Records.
- Search using the specific course number for the course you want.
- Actual enrollment approval typically runs through your commander, not self-service alone.
Frequently Asked Questions
What is ATRRS?
ATRRS (Army Training Requirements and Resources System) is the Army's official system for training course records, registration, and reservations — it's where formal school seats and many online/resident course enrollments are tracked and approved.
Where do I log into ATRRS?
At atrrs.army.mil. Insert your CAC into a card reader and select the appropriate certificate when prompted.
I don't have a CAC available — can I still log in?
Yes, using an Alternate Login ID. You have to create one first: after your initial CAC-based registration, go to "My Profile" from the main ATRRS menu to set up the Alternate Login ID for future non-CAC access.
How do I register for a course in ATRRS?
After logging in, find the "ATRRS Quick Links" section on the homepage, select "Training Registration and Records," and search using the specific course number for the course you want. Actual enrollment is typically granted by your commander, not self-service alone.
Is ATRRS the same as ALMS or JKO?
No. ATRRS handles formal course registration/records (schools, seats, reservations). ALMS (Army Learning Management System) and JKO (Joint Knowledge Online) deliver the actual online training content and track completions for many computer-based courses. A soldier's overall training picture often involves more than one of these systems.