Quartermaster and Chemical Equipment Repairer

You run a 3-5 soldier section inside an FSC, a BSB maintenance company, a chemical company, or a CBRN battalion, and you own both halves of the 91J portfolio. The QM field-service equipment — LADS, shower units, textile repair, water purification — is the bread-and-butter garrison maintenance that keeps the supported unit's hygiene and sustainment running. The CBRN detection and decontamination equipment — M22 ACADA, M26 JSLSCAD, M12A1 PDDA, M26 Decontamination System — is the low-density, high-criticality fleet that nobody thinks about until they need it, at which point it must work perfectly. The SGT 91J's job is not primarily to turn wrenches. You still diagnose the hard faults — the M26 JSLSCAD optics alignment that has stumped two SPCs, the LADS burner-assembly intermittent that defies the TM's troubleshooting table. But your primary job is to manage the section's production, train your soldiers, and maintain the section's OR rate across both equipment families. You build the section's training calendar around both the QM and CBRN portfolios so that your soldiers do not atrophy on one side while they get busy with the other. Counseling is real at SGT. You write monthly DA Form 4856 counseling statements on every soldier in the section. You write NCOER feeder input that provides the SSG with the measurable bullets he needs to write your soldiers' evaluations. You counsel on performance, on professional development, on personal issues when they arise. The SGT who counsels verbally instead of in writing is the SGT who gets burned when a soldier appeals a relief or a chapter. The GCSS-Army production board is your daily management tool. You open, monitor, and close MROs for your section. You track which parts are on order, which are aging past the target window, and which Class IX items the brigade S4 needs to prioritize. You run the section's readiness reports and you brief the company production meeting on your fleet's status — both QM and CBRN. The company commander reads the OR rate; the maintenance control NCO reads the MRO aging. Both readings must tell the same story. The CMDP (Command Maintenance Discipline Program) inspection is the quarterly stress test. At SGT level you are responsible for your section's compliance: TMDE calibration current, MRO paperwork complete, safety posters posted, training records current, hand-receipt accountability clean. The IG inspector finds the gap you left unchecked. The section that passes the CMDP without findings is the section whose SGT did the work before the inspection, not during it. Field maintenance at SGT level is different from cherry maintenance. At the FSC logistics release point or the CBRN company support area, you are running the section's production while managing your soldiers' welfare — rest cycles, feeding, morale, and safety. The LADS that breaks at 0200 during a CTC rotation gets fixed because you trained your soldier to fix it, not because you fixed it yourself while your section slept. The M22 ACADA that needs a concentrator wheel in the middle of a detection exercise gets repaired by your SPC while you manage the section's overall contribution to the supported unit's decon timeline. The ALC (Advanced Leader Course) is the STEP gate for SSG. If you have not graduated ALC by mid-tier at SGT, the SLC packet and the SSG board conversation are stalled. Pull the packet within your first 12 months at SGT. The ALC slot pipeline runs through the brigade S3 and battalion S3 channels; the DA 4187, ATRRS slot confirmation, medical and dental clearance, and transcripts all take time to assemble. Start early. The civilian credentialing trajectory continues at SGT — but now you are also responsible for your soldiers' credentialing. Push your SPCs and PFCs toward EPA 608, HAZWOPER, and water treatment certifications through Army Credentialing Assistance. The section whose soldiers ETS with credentials is the section whose SGT took professional development seriously. That section's retention rate — or its soldiers' civilian success — is on you.