// Register Custom Taxonomy function custom_taxonomy() { $labels = array( 'name' => 'Zip Codes', 'singular_name' => 'Zip Code', 'menu_name' => 'Zip Codes', 'all_items' => 'All Zip Codes', 'parent_item' => 'Parent Zip Code', 'parent_item_colon' => 'Parent Zip Code:', 'new_item_name' => 'New Zip Code Name', 'add_new_item' => 'Add New Zip Code', 'edit_item' => 'Edit Zip Code', 'update_item' => 'Update Zip Code', 'view_item' => 'View Zip Code', 'separate_items_with_commas' => 'Separate zip codes with commas', 'add_or_remove_items' => 'Add or remove zip codes', 'choose_from_most_used' => 'Choose from the most used', 'popular_items' => 'Popular Zip Codes', 'search_items' => 'Search Zip Codes', 'not_found' => 'Not Found', 'no_terms' => 'No items', 'items_list' => 'Items list', 'items_list_navigation' => 'Items list navigation', ); $args = array( 'labels' => $labels, 'hierarchical' => false, 'public' => true, 'show_ui' => true, 'show_admin_column' => false, 'show_in_nav_menus' => false, 'show_tagcloud' => false, ); register_taxonomy( 'zip-codes', array( 'chapters' ), $args ); } add_action( 'init', 'custom_taxonomy', 0 );