What is the usual classification level of special instructions (SPINS)?

The usual classification level for special instructions (SPINS) is classified as Secret. SPINS include sensitive information that, if disclosed, could compromise national security or military operations. As a result, they are designated as Secret to prevent unauthorized access. This classification ensures that personnel handling SPINS have the necessary clearance and training to understand the implications of the information contained within these specific instructions.

The classification of Secret is appropriate because it strikes a balance between protecting the information that is crucial for operational effectiveness while still being accessible to those who require it for mission success. Handling and dissemination of such sensitive information are tightly controlled to mitigate any risks associated with exposure.