13. which command staff member serves as the incident command’s point of contact for organizations not included in the incident command or unified command?

Liaison Officer.

Explanation:

The Liaison Officer (LNO) is the point of contact for spokespeople of governmental agencies, non-governmental institutions, and private entities assigned to an incident. Representatives from assisting or cooperating agencies and organizations coordinate through the LNO, holding the full authority to speak for their origin agencies or organizations.