Formal Paper on TD Bank

Hi, I have to write a paper and it's on TD Bank. There is a part where I have to mention Authorization. What exactly is authorization? My book says who commissioned the report, so who allowed me to write the report??? My teacher? And if no letter of transmital is provided, tell why, when, by whom and to whom the report was written. Again, it is my teacher right. How long does this part have to be?

I am not sure how to start the sentence. I know I have to write this paper (my teacher asked us to) to analyze how well TD Bank communicates with its employees and its clientele. We are 6 members that write the report, we write it to the teacher for Nov.26, 2008. Is there some format to use, i know i have to use the formal way. Thank you.