Final answer:
The security clearance access roster for a command is maintained by the command's security manager or INFOSEC office, including managing access to classified information and regular updates.
Step-by-step explanation:
The security clearance access roster for a command is typically maintained by the command's security manager or the Information Security (INFOSEC) office. They are responsible for ensuring that access to classified information is restricted to authorized personnel. The roster includes the names and clearance levels of individuals, and it is regularly reviewed and updated to account for personnel changes. Good practices in maintaining the roster include validating the need for access, ensuring proper clearance level, and conducting regular audits.