Why are three TAs recommended at each duty station?

Having three Trusted Agents (TAs) at each duty station is primarily recommended to ensure continuity in case of absence. The role of a TA is critical in managing the Public Key Infrastructure (PKI) responsibilities, including the issuance and management of digital certificates and key materials. By having multiple TAs, the organization can maintain functionality and support even if one TA is unavailable due to leave, duty assignments, or other commitments. This redundancy helps to mitigate risks associated with dependency on a single individual, ensuring that operations related to PKI can continue smoothly without interruption.

In addition to promoting operational efficiency, this model fosters a team approach to TA responsibilities, allowing for the sharing of knowledge and best practices, which can enhance overall performance and service delivery within the PKI framework.