An annotation is a statement that the U.S. Copyright Office adds to the registration record to clarify the facts underlying the claim or to identify legal limitations on the claim. The registration specialist may annotate an application without communicating with the applicant if the annotation does not cast doubt on or raise a question concerning the validity of the registration. As discussed in Sections 604.1 through 604.4, annotations may be made for a number of different reasons.
An annotation adds substantive information to the registration itself and is considered part of the certificate of registration, as compared to a note or change in the registration record that is made by the registration specialist as part of his or her cataloging responsibilities (such as adding a note or an index term to the online public record).