FedEx, UPS, and the U.S. Postal Service have put up advisories on their sites and email lists. The advisories warn customers to expect service delays and disruptions during the visit of Pope Francis to New York City, Philadelphia, and Washington, D.C.

This will be the first time Pope Francis will visit the U.S. and he will be here for six days. The Pope’s visit to the United States has been declared a national security event that many are considering to be bigger than the Super Bowl. Large sections of the downtown areas will cause disruption of services, deliveries, and couriers to operate regularly. The delays are expected to primarily be in the Philadephia metro area as the visits to NYC and DC are going to be shorter and therefore not a major issue. Expect this to impact passport processing times as well. Be sure to get your passport applications submitted as soon as possible to avoid any delays.

“We have implemented contingency plans to help mitigate delays,” a FedEx spokesman told CNBC. “Our goal is 100-percent reliability, and we appreciate our customers’ patience and understanding while our operations teams work to minimize any delays.”