It is unlawful for any person to place or stamp the letters “CA” or a similar designation in conjunction with a number upon any container or subcontainer of any fruits, unless:

1. The Commissioner has inspected such fruits and validated a certificate stating their condition, that they were stored in a warehouse registered under the provisions of this chapter and that they meet all other requirements of this chapter or regulations adopted hereunder; and

2. A certificate number and certificate date is affixed to all shipping documents.