Chapter 4: Criteria of Availability
Article 10. Provisions conferring availability
Article 12. Names published before 1931
Article 13. Names published after 1930
Article 14. Anonymous authorship of names and nomenclatural acts
Article 15. Names and nomenclatural acts published after 1960
Article 16. Names published after 1999
Article 18. Inappropriate and tautonymous names
Article 19. Status of emendations, incorrect spellings, and mandatory changes
Article 20. Genus-group names ending in -ites, -ytes, or -ithes given to fossils