>There are two types of license for London black cabs - one for the city center and one for the whole of London. The one that can only do the city center have a

>There are two types of license for London black cabs - one for the city center and one for the whole of London. The one that can only do the city center have a green sticker. AFAIK the opposite is true. The green badge is the 'All London' badge, which entitles the holder to work everywhere in London. The yellow badge is the Suburban badge, which allows them to work in one of 9 specific areas that form a ring around Inner London.