NATS TIP Amendment Application (doc) When you have a proposed TIP amendment to bring to NATS, please complete the TIP Amendment Application. This form has all the information needed, in a drop down menu format. Use the drop down menus to fill in the fields and hit Tab to get from one field to the next. For the fields regarding project limits, length, and description, you will be able to type your information. Once the form is filled out, you can save a copy to your files. Please email, mail, or fax the completed form to Nick or Kelly.