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Body composition data is back in MCTIMS. Here's what units need to do.

MARADMIN 358/26·August 7, 2026·3 min read·Official source
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The Marine Corps has published guidance to restart recording body composition data in the Marine Corps Training Information Management System (MCTIMS). Everything that was in place under MARADMIN 066/26 and MCO 6110.3A still applies. What's new is the instruction on how to actually enter data into the system and a hard deadline to backfill everything that happened since February.

★ Affects all reservists: Units must certify all body composition evaluations conducted since 26 February 2026 in MCTIMS no later than 4 September 2026.

Who it affects

Every unit with Marines who completed a body composition evaluation during the first semi-annual period of 2026. This includes RC units. You are responsible for recording evaluations for Marines who were in your unit when they completed the requirement, even if they have since transferred out.

What you need to do

For unit administrators and personnel overseeing body composition evaluations:

  1. Log into MCTIMS and go to the Individual Training tab under the Individual Marine Management dropdown. The scoresheet is labeled "Semi-annual Body Composition Evaluation."
  2. Enter waist and height measurements rounded down to the nearest 1/2 inch, formatted as XX.X (for example, 33.0 or 70.5, not 33 or 70).
  3. MCTIMS calculates the Waist-to-Height Ratio (WHtR) automatically. If it exceeds 0.52000, the system flags it and requires at least one body fat value.
  4. Enter weight. Weight no longer determines standards, but it still gets recorded. If your unit did not capture weight during the first semi-annual period, enter 75 as the placeholder.
  5. For body fat: enter tape test results as a whole number (X or XX). Enter BIA results exactly as printed, including the decimal (XX.X). Do not round BIA results. If a method was not used, leave that field blank.
  6. If BIA was conducted, also enter skeletal muscle mass (SMM) and lean body mass (LBM) from the printout. For evaluations done before this MARADMIN was released, enter 00 if those values are unavailable. From now until 1 September 2026, enter 00 for LBM regardless, due to a system limitation.
  7. For PFT/CFT performance-based body fat allowances: MCTIMS does not account for these automatically. Check the Marine's Basic Training Record in MOL and cross-reference MARADMIN 066/26 manually. Do not subtract body fat in MCTIMS to make a Marine appear in standards.
  8. Certify all backdated scoresheets by 4 September 2026. If you need more time, get an O-6 endorsement and submit an extension request through Enterprise Task Management Software Solution (ETMS2) to the addressee USMC TECOM.

For RC units specifically: conduct BCP periodic assessments (weight plus WHtR) when practicable at the drill weekend level.

Important: Body composition data will not automatically push from MCTIMS into MOL or the Marine Corps Total Force System (MCTFS). That integration is still being built. More guidance will come when it is ready.

Key dates

  • 26 February 2026: Start date. All evaluations from this date forward must be entered.
  • 4 September 2026: Deadline to certify all backdated scoresheets.
  • 1 September 2026: LBM entry restriction lifts (until then, enter 00 for LBM on all evaluations).

The official version

This guidance comes from MARADMIN 358/26. It references MCO 6110.3A with Admin Ch-4, MCBUL 6110 with Admin Ch-1, MCO 1610.7B, MCO 1900.16 with Ch-3, and MCO P1070.12K. Questions can go to TECOM Force Fitness at TECOM.FORCEFITNESS@USMC.MIL (703-432-2285) or M&RA Performance Branch at SMB_HQMC_A-PES@USMC.MIL (703-432-0514).

This is written by a reservist, for reservists. It is not an official publication of HQMC or MARFORRES. Always verify guidance with your command or unit S-1 before acting on any article or summary.

Resources & references

The documents this bulletin points to, with a plain-English note on why each matters. Links marked CAC required need a government login.

  • Advance Notification of Changes to PFT and Body Composition Evaluation Process (MARADMIN 066/26)MARADMIN

    This is the Change 1 message that kicked off the new body composition evaluation process starting 26 February 2026. All evaluations conducted since that date must now be recorded in MCTIMS, and most details from this message remain in effect alongside this MARADMIN.

  • Body Composition and Military Appearance Program order (MCO 6110.3A w/ Admin Ch-4)Reference

    This is the governing Marine Corps Order for the Body Composition and Military Appearance Program. It controls scoresheet certification procedures, authorized exemptions, waiver authority, and BCP program management rules cited throughout this MARADMIN.

  • BIA Implementation Bulletin (MCBUL 6110 w/ Admin Ch-1)Reference

    This bulletin covers the implementation of Bioelectrical Impedance Analysis into the body composition evaluation process. It is relevant to any unit or Marine involved in BIA testing and data entry.

  • Performance Evaluations System Manual (MCO 1610.7B)Reference

    This is the Marine Corps manual governing performance evaluations. Failure to complete a required body composition evaluation can result in an adverse evaluation under this order.

  • Separation and Retirement Manual (MCO 1900.16 w/ Ch-3)Reference

    This manual governs Marine Corps separations and retirements. Failure to complete the semi-annual body composition evaluation requirement may be administratively adjudicated under this order.

  • Individual Records Administration Manual (MCO P1070.12K w/ Ch-1)Reference

    This manual governs the administration of individual Marine records. It is one of the references used when administratively adjudicating failure to complete a body composition evaluation requirement.

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Body composition data is back in MCTIMS. Here's what units need to do. — Reservable