Order Form Downloadable order form. Click Here Please be sure to read the requirements below before submitting an order form. For 1st time buyers, an authorization letter is required with every purchase. It must be signed by the Chief of the department. Print order form and fax together with your authorization letter to 323-278-1980. Make sure the order form is completely fill out. For any questions regarding ordering, please call us at 323-278-1999 or email us at sales@entenmann-rovin.com