The WGP Companies makes a speciality of federal construction contracting, complicated surety-default projects, and disaster recovery tasks. During October 2017, the Australian construction contractor Seymour Whyte was purchased by Vinci.| These latter actions can increase construction costs considerably. Once all passengers have been accounted for, the airline issues a closing manifest, which can be used to notify relatives within the unlikely occasion of an air catastrophe. Passenger airlines load civilian passengers, their luggage (and generally their pets), snacks and drinks. Airports that handle passenger planes operated by corporations corresponding to Southwest, Delta and United Airlines and cargo planes operated by FedEx, DHL and other comparable entities belong to the industrial aviation class.