Army OER (DA 67-10) Guide

The Army OER uses a three-tier rating system at the SR level: Above Center of Mass (ACOM), Center of Mass (COM), and Below Center of Mass (BCOM). These labels describe your position relative to the SR's overall rated officer population.

ACOM is the highest tier and carries the most board weight. It signals the SR considers you among the top performers. COM is the middle tier — the largest group — and while it doesn't disqualify, it requires exceptional supporting text to be competitive at senior boards. BCOM is a significant negative signal and will almost certainly limit promotion competitiveness.

"COM" sounds neutral but at O-4 and above, a file of COM-only OERs without a single ACOM rarely promotes. Center of mass is a promotion plateau, not a safe harbor.

A COM rating from an SR who rates 30 officers and gives ACOM to only 2 is very different from a COM from an SR who gives ACOM to 15 of their 20 officers. The board can see the SR's profile — their historical distribution of ACOM/COM/BCOM ratings — and adjusts their reading accordingly.

This is why a "stingy" SR sometimes helps: an ACOM from an SR with a historically tight ACOM pool carries more weight than an ACOM from an SR who hands them out freely. Conversely, a COM from a generous SR looks worse than a COM from a stingy one.

Your career manager can give you your SR's profile data before your OER is written. If the SR pools are being used extremely generously, advocate for ACOM language that is explicit and specific.

The word "developmental" on an OER is nearly always a red flag, regardless of context. When an SR or rater describes an officer as having "developmental needs," "areas for development," or "developing leadership," the board reads it as a softened criticism.

Similarly, phrases like "would benefit from," "growing into," or "learning to" signal the officer is not yet ready for the next level. These appear in narratives that are trying to be kind while documenting a gap. Boards see through the softening and read the underlying message.

If you received an OER with "developmental" language, you can request a commander's inquiry (CI) and, if warranted, file for a correction through the Officer Special Review Board (OSRB). See your JAG or AR 623-3.

SR narratives on ACOM reports use a predictable escalating language pattern that boards have learned to read precisely. The phrases signal not just praise but comparative standing.

"Best officer in my career" → Extreme outlier. Rare and credible from an experienced SR. Boards love this. "Unlimited potential" → Signals the SR sees this officer going to O-6/Flag. Normal ACOM language for O-3 and O-4. "Ready for promotion and increased responsibility" → Standard ACOM close. Expected but not differentiating. "Would benefit from broadening assignments" → COM or BCOM signal. It's positive-sounding but flags gaps. "Recommended for promotion with peers" → With-peers is the floor. Boards read "ahead of peers" as ACOM quality.

An OER is "referred" when it contains derogatory information — statements that indicate the officer failed to meet Army standards. Common triggers include: BCOM SR rating, a relief for cause section, failure of a physical fitness test during the rating period, or negative comments on conduct or integrity.

A referred OER requires the rated officer to acknowledge the report and provides an opportunity to submit a rebuttal. The rebuttal does not remove the OER but becomes part of the official record. Referred OERs are almost always career-limiting and should be addressed with a JAG and career manager immediately.

Receiving a referred OER does not necessarily end your career, but it requires an active mitigation strategy: strong subsequent OERs, completed schooling, command opportunity, and a career manager who knows your situation.