Who needs a responsible Party? A person needs a responsible party if: They are under 18They are an incapacitated adult with a court-appointed guardianThe PCA assessment indicates you need help making decisions about your care. Updated on February 20, 2021 Tagged: PCA AssessmentResponsible Party Was this article helpful? Yes No Related Articles What is the Traditional PCA option? What will happen at the PCA assessment? When can my PCA start working? Where can a PCA provide Services to me? Who can I call for help if someone is abusing me? Who cannot be a responsible party?