You may make a report in any of the ways described in this section.
(a) Written reports. You may write a report on your own paper or on a printed form supplied by us. You may mail a written report or bring it to one of our offices.
(b) Oral reports. You may report to us by telephone, or you may come to one of our offices and tell one of our employees what you are reporting.
(c) Other forms. You may use any other suitable method of reporting—for example, a telegram or a cable.