( CNN ) -- Canada is immediately limiting carry-on items for flights to the United States in the aftermath of a failed terror attack on a Northwest Airlines flight . `` Effective immediately , U.S.-bound passengers are not allowed to bring carry-on bags into the cabin of the aircraft , with some exceptions , '' said a statement from Transport Canada . According to the agency , carry-ons will be limited to medication or medical devices , small purses , cameras , coats , infant-care items , laptop computers , containers carrying life-sustaining or special-needs items , musical instruments , or diplomatic or consular bags . Crutches , canes and walkers also are permitted . `` These measures are expected to be in place at least for several days , '' Transport Canada said . Canada made the change after a botched terrorism attack on a U.S.-bound plane . Umar Farouk AbdulMutallab , 23 , is charged with attempting to destroy a Northwest Airlines flight from Amsterdam , Netherlands , to Detroit , Michigan , on Christmas Day . He attempted to ignite an explosive device sewn into his underwear , authorities say . AbdulMutallab , a Nigerian who had a multiple-entry visa to the United States , had been added to a watch list of 550,000 potential terrorist threats . But `` the info on him was not deemed specific enough to pull his visa or put him on a no-fly list , '' a U.S. official said . AbdulMutallab first boarded a KLM flight from Lagos , Nigeria , to Amsterdam . Both Nigerian authorities and KLM , a Northwest partner , say he received secondary security screening . But a U.S. official said Friday that AbdulMutallab was not checked for traces of explosives using a more extensive test . The Transportation Security Administration had invoked a so-called `` one-hour rule '' after the thwarted attack , sources told CNN . The rule prohibited passengers on international U.S.-bound flights from leaving their seats during the last hour of a flight , the sources said . Passengers had to stow pillows and blankets , and maps viewed on in-flight entertainment screens were disabled during the final hour of flight . TSA has since modified the rule , giving airlines and crews discretion over implementation , sources said . `` When we were landing in the U.S. we could n't get up or have anything on our laps , '' said Rati Lavanig , who traveled from Thailand with her small child . `` It was difficult because right at the end he wanted some milk , and I could n't give it to him . '' Several international airlines posted advisories on their Web sites regarding extra screenings and carry-on bags for international U.S.-bound flights , saying that the U.S. government 's revisions have prompted changes for passengers flying to the United States . Only one carry-on bag is allowed for international U.S.-bound flights , the advisories said . Virgin Atlantic advised passengers to check in early ; British Airways told passengers to check in normally . Passengers traveling across the United States braced for long lines and delays , as well . Barry and Angela Szczesny arrived at the airport in Detroit , Michigan , three hours ahead of their flight to Washington -- far earlier than they 'd usually allow for a domestic flight . In Detroit , long lines at the ticket counters greeted Delta and Northwest passengers early Tuesday , but subsided by around 8 a.m. Security lines were long but moved , forcing passengers to wait only about 15 minutes . CNN 's Allan Chernoff , Taylor Gandossy and Sandra Endo contributed to this report .
NEW : This means the product will ship as received by the manufacturer, sealed, with all advertised components, and with the manufacturer warranty. Canada changes rules after botched terror attack on U.S.-bound flight . Carry-ons with medical needs , laptops , musical instruments will be allowed . Measures expected to be in place at least several days , Transport Canada says .