The 'CC' notation usually includes names of people to whom you distribute copies, sometimes you could include their addresses as well. 'CC' is typed at the end of the letter after enclosure notations or identification initials.

Does enclosure come after CC?

Reasons to Use CC at the Bottom of a Formal Letter

With a formal typed letter, this is possible by including a carbon copy notation at the end of your message. After your enclosure section, type the notation CC followed by a colon. Next, include the name of the person you're sending the letter to.

What is the correct format for CC in a business letter?

Under your signature, type "CC" and place two to four spaces between your signature and the CC line. Now enter the names of everyone who will be CC'd on this letter.