Shipping insight – Sponsorship Levels

// Register Custom Taxonomy
function si_participant_affiliation_taxonomy() {

	$labels = array(
		'name'                       => 'Affiliations',
		'singular_name'              => 'Affiliation',
		'menu_name'                  => 'Affiliations',
		'all_items'                  => 'All Affiliations',
		'parent_item'                => 'Parent Affiliation',
		'parent_item_colon'          => 'Parent Affiliation:',
		'new_item_name'              => 'New Affiliation Name',
		'add_new_item'               => 'Add New Affiliation',
		'edit_item'                  => 'Edit Affiliation',
		'update_item'                => 'Update Affiliation',
		'view_item'                  => 'View Affiliation',
		'separate_items_with_commas' => '',
		'add_or_remove_items'        => '',
		'choose_from_most_used'      => '',
		'popular_items'              => '',
		'search_items'               => 'Search Affiliations',
		'not_found'                  => 'Not Found',
		'no_terms'                   => 'No affiliation',
		'items_list'                 => 'Affiliations list',
		'items_list_navigation'      => 'Affiliations list navigation',
	);
	$args = array(
		'labels'                     => $labels,
		'hierarchical'               => true,
		'public'                     => true,
		'show_ui'                    => true,
		'show_admin_column'          => true,
		'show_in_nav_menus'          => false,
		'show_tagcloud'              => false,
	);
	register_taxonomy( 'affiliation', array( 'participants' ), $args );

}
add_action( 'init', 'si_participant_affiliation_taxonomy', 0 );