Army Regulation 600-9 governs the Army Body Composition Program (ABCP). Every soldier is measured twice a year; failing height/weight screening triggers the tape test. Fail the tape and you're enrolled in the ABCP with a 6-month timeline to get compliant or face separation from service. It's a career issue disguised as a health metric — worth understanding precisely.

The 2023 update to AR 600-9 simplified the male tape test to a single abdominal measurement at the navel, replacing the older three-site (neck + abdomen + hip) method. Female soldiers still measure abdomen and neck. The rationale: single-site methods correlated equally well with DEXA-measured body fat but were faster, less error-prone and less invasive. The pass thresholds also loosened slightly for younger soldiers.

The current pass thresholds: males 20% (17–20), 22% (21–27), 24% (28–39), 26% (40+). Females: 30% (17–20), 32% (21–27), 34% (28–39), 36% (40+). Passing height/weight screening bypasses the tape entirely — this is why soldiers on the edge focus on both cutting weight AND leaning down before assessment week.

Precise measurement matters. The tape must be perpendicular to the long axis of the body, snug but not compressing tissue. The abdominal measurement is taken at the end of a normal exhale — not sucked in, not held. Three readings per site are averaged. Time of day, hydration and last meal all swing results by 1–2%. Best practice: measure fasted, first thing in the morning, after voiding.

If you fail: you have the right to a supplemental body composition assessment — DEXA scan, BOD POD or hydrostatic weighing — approved by your commander. Results from the supplemental test replace tape results for that assessment cycle. This is the escape hatch for lean, muscular soldiers who tape 'obese' because of neck circumference or heavy muscle. Know the regulation, use the calculator to project your standing before assessment, and don't wait until the last week to prepare.