What is the conduct mark range that is considered unacceptable?

The conduct mark range considered unacceptable is from 0 to 1.9. This range indicates a serious deficiency in conduct and behavior, reflecting a lack of discipline or adherence to the standards expected within the Marines. Such a low mark may suggest issues such as repeated rule violations, misconduct, or a failure to embody the core values of honor, courage, and commitment.

In a military context, maintaining an acceptable conduct mark is crucial, as it impacts not only the individual’s reputation but also the effectiveness of the unit. Higher conduct marks reflect a soldier's ability to meet expectations and maintain a professional standard, which is essential for operational success and effective leadership.