Final answer:
Deploying personnel are given a deployment processing checklist to ensure they complete all required services when a PDF line is not needed.
Step-by-step explanation:
When a personal deployment facility (PDF) line is not required, deploying personnel are typically provided with a deployment processing checklist or equivalent documentation. This checklist ensures they visit all the necessary services offered in a formal personnel deployment facility function (PDFF) line. The processing checklist acts as a guide for personnel to follow ensuring they receive all the required briefings, medical checks, or administrative support deemed necessary for their deployment readiness.