Each part listed in the following table records all current registrations in the class or classes indicated by the alphabetical symbols. Renewal registrations are listed separately at the end of each related part. Some parts also contain registrations made under symbols other than those listed for the particular part, if the subject matter or type of material is similar to that generally included in the part.
The first letter of the symbol is that of the class under which registration is made. Second and third letters, if any, that follow the initial letter are added by the Copyright Office for the purpose of statistical analysis. Their significance is as follows:
F Published foreign works. In the case of books and periodicals, it designates works manufactured outside the United States (except those registered for ad interim copyright). In all other classes to which it applies, it designates works first published outside the United States, the authors of which are neither citizens nor domiciliaries of the United States. (AF, EF)
I Books and periodicals registered for ad interim copyright. (AI, BI)
O Published works of foreign origin registered under the waiver-of-fee provision (section 215 of Title 17 of the _United States Code_). (BIO, GFO)
P Domestic published works in classes for which registration is possible for either published or unpublished works. (EP, JP)
U Unpublished works in classes for which registration is possible for either published or unpublished works. (DU, EU)
Part I Books and Pamphlets, Including Serials and Contributions to Periodicals (In 2 sections) $7.50 A Books BB Contributions to periodicals R Renewal registrations
Part 2 Periodicals (Annual issue) 5.00 B Periodicals R Renewal registrations
Parts 3–4 Dramas and Works Prepared for Oral Delivery 2.50 C Lectures and other works prepared for oral delivery D Dramatic or dramatico-musical works R Renewal registrations
Part 5 Music (In 2 sections) 7.50 E Musical compositions R Renewal registrations
Part 6 Maps and Atlases 2.50 F Maps R Renewal registrations
Parts 7–11A Works of Art, Reproductions of Works of Art, Scientific and Technical Drawings, Photographic Works, Prints and Pictorial Illustrations 2.50 G Works of art and models or designs for works of art H Reproductions of works of art I Drawings or sculptural works of a scientific or technical character J Photographs K Prints and pictorial illustrations R Renewal registrations