Final answer:
A NCO who believes there are errors or unjust information in an NCOER that is posted to their AMHRR can submit a formal appeal following the process detailed in AR 623-3, providing sufficient evidence and following the specified time limits.
Step-by-step explanation:
The question relates to a Non-Commissioned Officer (NCO) seeking to address concerns about an NCO Evaluation Report (NCOER) that has been filed into their Army Military Human Resource Record (AMHRR). According to Army Regulation (AR) 623-3, a 'posted' NCOER means it has been finalized and entered into the official record. If an NCO believes that their NCOER contains errors or is unjust, they have the option to submit an appeal. The appeal process is detailed in AR 623-3 and the NCO would need to provide sufficient evidence that the report is inaccurate or unjust. This process typically involves submitting a formal written appeal through their chain of command or directly to the appropriate review authority, often with supporting documentation. It is important to act promptly, as there are time limits on submitting appeals after the NCOER has been accepted into the AMHRR.