text: There are two kinds of "couriers" in the sense that you mean.  One is the "occasional," who has been checked out and had a bond written and can be called at any time with an offer of an assignment by companies that provide this service.\n\nThe other is as a uniformed courier in full-time employment with a service company.  If I am not mistaken, and it's quite possible I am, one of the firms that offers this service is Wells Fargo.\n\nYou need to have a clean criminal record, be able to pass a pre-employment drug test as well as surprise tests at any time while working, and a decent financial situation (that is, not be in or at the very verge of bankruptcy).  There are other qualifications, too.  It helps to have a current passport and for overseas assignments have a current immunization schedule as well as the ability to read, speak and write another language.  Above all, it is important to dress neatly and without calling attention to yourself, be well-groomed and use reasonable manners.\n\nCheck the newspapers in major cities - especially Los Angeles, San Francisco, New York, Chicago, Boston and Washington, D.C.  Their classified ads columns on Sunday usually have ads for couriers.  Today you can see most of those online and it is really tons easier searching the ads that way.\n\nAlso look in the Yellow Pages for companies that provide courier services - and best of all, call the local offices of airline cargo departments.  They can tell you which companies are active nearby and perhaps even whom to call about this.