An applicant is not required to register in all classes in which it provides information, but may instead choose to register only the classes of the fields that are most important to it. The examining attorney will ask the applicant to indicate the fields of information to assist in classification. The applicant must decide if it wishes to: (1) go forward and register the information services in all of the appropriate classes; or (2) choose the class(es) that are most important to its business, and amend the identification to delete reference to fields of information that fall into other classes. See TMEP §1401.04(b).

via TMEP.