The person completing the form must sign and date the form and provide his or her address. The signature is a legal requirement (mandatory field).Find out if you need to report a collision, how to file a report, and what collision information goes on your driving record. Who files the collision report? The code states that accident victims should fill out a MVCR within four days of the accident. The online form can be found here. You can report collisions online via the Collision Report with Washington State Patrol. If you need a copy of your collision report for your insurance. Edit, sign, and share washington state accident report pdf online. No need to install software, just go to DocHub, and sign up instantly and for free.