This document is a checklist designed for organizations submitting patient panels to the CSS system. It outlines the necessary account and point of contact information required for submission, including the types of CSS services of interest. The checklist emphasizes the importance of timely submission of patient panels to ensure accurate representation of active patients, detailing the consequences of failure to do so. It provides guidance on how to submit patient panels, including options for new or existing MPI codes and submission methods such as CSS Panel Processor or Auto-Subscription. Additionally, it includes sections on notifications related to patient encounters and outlines the requirements for inbound and outbound notifications. The document also contains appendices detailing ADT event types and patient panel requirements, ensuring that users have clear instructions on the submission process and the necessary information to maintain compliance with CSS policies.