To get a learner's permit, driver's license, or Mass ID in Massachusetts, you'll need to identification documents first. Learn what documents you can use below.This article will explain the authorization letter format and also give you authorization letter samples for your reference. A form used to determine the amount of a person's assets when that person wants to find out if he or she may be eligible for MassHealth long-term-care benefits. Write your name and class in the first line. Format of the Authority Letter. For some services listed in our medical policies, we require prior authorization. When prior authorization is required, you can contact us to make this request. Know how to write an Authorisation letter along with samples. Consent Letter: Looking for a consent letter format?