Who is responsible for completing the designated portions of the SF-91 per JAG guidelines?

The investigation officer is responsible for completing the designated portions of the SF-91 in accordance with JAG guidelines. This document is critical for reporting motor vehicle accidents involving military personnel and is used for legal and administrative purposes. The investigation officer, typically tasked with the responsibility of gathering facts and details surrounding the incident, has the expertise and authority to accurately fill out the SF-91 based on the information collected during the investigation. Their role is paramount in ensuring that all documentation complies with legal standards and procedures, thereby facilitating appropriate actions in accordance with military regulations.

The other options may involve relevant responsibilities in the overall incident and accident reporting process, but only the investigation officer has the specific duty of completing the SF-91 as dictated by JAG requirements.