Approval of substitute forms. Prior approval of substitute forms may be obtained by writing Technology and Information Management Division, P.O. Box 10460, Des Moines, Iowa 50306, by telephoning (000)000- 0000, or by faxing (000)000-0000. Fax communication to the department of approval requests are acceptable only in limited circumstances because approval of substitute paper document forms requires receipt by the department of a sample of the actual substitute form before approval can be provided. Normally, approval will be granted for use of substitute forms for one year only. If doubt exists about the need for approval of a particular substitute form, the form should be submitted for consideration.