Express mail is a service for domestic mail and is governed by a country's own postal administration & since 1998 the international accelerated delivery services are governed by the EMS Cooperative.
Express Mail Service (EMS) is an international express postal servicewhich delivers through local postal network of different countries. Online tracking is possible for most countries of EMS network. EMS is an international postal Express Mail Service offered by postal-administration members of the Universal Postal Union (UPU).