public function register_taxonomy() {
			$taxonomy_args = [
					'hierarchical'          => true,
					'update_count_callback' => '',
					'rewrite'               => [
							'slug'         => $this->rewriteSlug . '/' . $this->category_slug,
							'with_front'   => false,
							'hierarchical' => true,
					],
					'public'                => true,
					'show_ui'               => true,
					'labels'                => $this->taxonomyLabels,
					'capabilities'          => [
							'manage_terms' => 'publish_tribe_events',
							'edit_terms'   => 'publish_tribe_events',
							'delete_terms' => 'publish_tribe_events',
							'assign_terms' => 'edit_tribe_events',
					],
			];

			/**
			 * Filter the event category taxonomy arguments used in register_taxonomy.
			 *
			 * @since 4.5.5
			 *
			 * @param array $taxonomy_args
			 *
			 */
			$taxonomy_args = apply_filters( 'tribe_events_register_event_cat_type_args', $taxonomy_args );

			return register_taxonomy( self::TAXONOMY, self::POSTTYPE, $taxonomy_args );
		}