TC 3-20.31-10 — Commander’s Armor Maintenance Skills Test Program
TC 3-20.31-10 governs the Commanders Armor Maintenance Skills Test Program for assessing and improving armor crew maintenance proficiency.
- Publication number: TC 3-20.31-10
- Title: COMMANDER’S ARMOR MAINTENANCE SKILLS TEST PROGRAM
- Date: 03/17/2026
- Proponent: T2COM
- Status: ACTIVE
View TC 3-20.31-10 on armypubs.army.mil
It covers MST structure, leader certification, hands-on and written testing, and planning through the 8-step training model. It provides task-based evaluations and performance checklists for M1A2 and Bradley maintenance skills.
Applies to: TC 3-20.31-10 applies to the Active Army, Army National Guard/Army National Guard of the United States and United States Army Reserve unless otherwise stated.
Topics covered
- Maintenance Skills Testing structure
- Leader training and certification
- Hands-on maintenance testing
- Written operator maintenance testing
- M1A2 SEPv2 and SEPv3 maintenance tasks
- Bradley maintenance tasks
Questions and answers
Who is trained and evaluated in MST?
The training audience for MST is all crewmembers (including leaders) assigned to M1 and M2 platforms. All crewmembers will be trained and evaluated on their ability to meet the standards for the hands-on training. (paragraph 1-21)
What are the three pillars of MST?
MST is broken into three pillars: leader training, hands-on training, and written testing. These three pillars are meant to form a comprehensive approach to training operator maintenance skills. (paragraph 1-7)
How can MST retraining be conducted?
MST retraining can be conducted at the crew level, with an MST certified leader retraining their subordinate and validating their ability to perform the failed task to standard. (paragraph 1-36)
What does written testing assess in MST?
Written testing is meant to assess leaders and Soldiers on critical operator maintenance, administrative, and diagnostic skills that are difficult or impossible to assess using hands-on training. (paragraph 1-15)
What is required to replace a track section on an M1A2?
Within 30 minutes the crew will Disconnect track (WP 0550 M1A2 SEPv2, WP 0562 M1A2 SEPv3). Remove track shoe (WP 0551 M1A2 SEPv2, WP 0563 M1A2 SEPv3). Install track shoe (WP 0553 M1A2 SEPv2, WP 0565 M1A2 SEPv3). Connect track (WP 0554 M1A2 SEPv2, WP 0566 M1A2 SEPv3). (paragraph 1)