What should the letter of assignment contain?

The letter of assignment must be on a letterhead and be addressed to the Director of the Information Service. It must be signed by an authorized official (e.g., the Publisher, Assignment Editor or Bureau Chief), of the media organization seeking accreditation. Letters of assignment must specify the type of coverage, event or project assigned; the period of time for which accreditation is required; and the name and professional function(s) of the individual(s) to be assigned.