PGP Command Line not CAPS accredited?

I need to ability the automate the encryption and decryption of files in an IL3 environment.  Unfortunately as far as I can tell PGP Command Line is not CESG CAPS approved.  This raises couple of questions:

1. Am I correct and PGP command line is not CAPS approved?
2. If command line is not CAPS approved is there an approved tool capabile of automating file encryption and decryption?
3. If there is no approved tool and I need to go down the risk acceptance route of PGP Command Line what are the risks?  Why is command line less secure than PGP zip.?