There is no "official" format for cover letters. A cover letter is a three- to four-paragraph memo to employers that explains your interest in the job and company as well as your qualifications for the role.It should be brief and to the point! (It is an example of. The opening paragraph is an ideal place to catch the reader's attention. You can fill out one quick form here on TruckingTruth and apply to several companies at once for paid CDL training. I am writing you today to express my interests about potential vacancies within your company. I have included my resume for your consideration as well. Receive a complimentary resume review and stand out from the crowd. Start with an opening sentence that states why you are applying and what you bring to the position.