The European Union has issued a blacklist banning more than 90 airlines from operating in the region. Most of the companies, which the EU says fail to meet international standards, are based in Africa. They can apply to be taken off the list. The list will be available online and passengers will have to be informed if they are to fly on a named carrier. The move was proposed last year after a summer in which more than 500 people died in plane crashes worldwide. The list of 93 firms which face a complete ban and three facing operational restrictions was compiled from recommendations from the 25 members of the EU. It includes 50 carriers from the Democratic Republic of Congo alone, 14 from Sierra Leone and seven airlines from Swaziland.