What is the key load limit for an SKL before it must be returned to the COMSEC Custodian?

The key load limit for a Secure Key Loader (SKL) before it must be returned to the COMSEC Custodian is 100 key loads. This limit is established to ensure the integrity and security of communication keying material. After reaching this limit, the SKL needs to be returned for a regeneration process, which helps to prevent the risk of compromised key material. Regular adherence to this limit is critical in maintaining operational security and compliance with communication security protocols. Thus, understanding the importance of this limit is vital for personnel responsible for handling secure communications and encryption devices.