A no objection letter is a document that states that a person is permitted to travel to the United States. How to Write a No Objection Letter?Many standard forms are available below. All forms are categorized into their respective departments. This form is used to list several trips taken on Amtrak with one receipt. It should be attached to your expense report. Here you'll find answers to the most frequently asked questions, downloadable forms to help you manage your lease, and essential telephone numbers.