As long as a tracking number has not been generated, you can contact your local FedEx branch and put in a "Signature waiver" to either require or not require a signature for delivery. Call 1-800-GO-FEDEX. If a tracking number has been generated for your order and once FedEx attempts an initial delivery, they will leave a delivery notice on your door. On the reverse side youll find the same "Signature release waiver". Fill it out and they will follow your instructions on their next delivery attempt. Some FedEx drivers will leave a package if they are familiar with the neighborhood and consider it safe to do so. That is completely up to the FedEx driver.