PART IV - DUTIES OF LICENSED CERTIFICATION AUTHORITIES AND SUBSCRIBERS CHAPTER 4 - Control in private key
Section 45. Licensed certification authority to be fiduciary if holding subscriber's private key.
Where a licensed certification authority holds the private key corresponding to a public key listed in a certificate which it has issued, the licensed certification authority shall hold the private key as a fiduciary of the subscriber named in the certificate, and may use that private key only with the subscriber's prior written approval, unless the subscriber expressly and in writing grants the private key to the licensed certification authority and expressly and in writing permits the licensed certification authority to hold the private key according to other terms.