The place of publication is Alexandria, VA (where the society is located)
The author is again the American Counseling Association (rather than repeat the name of the association, you will often see citations say Author. It is a common shortcut. Using Author or repeating the name of the association would be equally correct.
An APA Reference Citation -
American Counseling Association. (2014). ACA Code of Ethics. Alexandria, VA: Author.
In text citations depend on how your are using the information in your sentence .....