public function get_default_iac_setting() {
		$option_name         = $this->get_default_iac_setting_option_name();
		$default_iac_setting = tribe_get_option( $option_name, self::NONE_KEY );

		if ( empty( $default_iac_setting ) ) {
			$default_iac_setting = self::NONE_KEY;
		}

		/**
		 * Allow filtering the default IAC setting for all tickets.
		 *
		 * @since 5.1.0
		 *
		 * @param string $default_iac_setting The default IAC setting for all tickets (none, allowed, required).
		 */
		return apply_filters( 'tribe_tickets_plus_attendee_registration_iac_default_setting_for_all_tickets', $default_iac_setting );
	}