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).The code states that accident victims should fill out a MVCR within four days of the accident. The online form can be found here. 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. Fill out and attach a Washington Motor Vehicle Collision. Report. 2. For Employee Injury. You must fill out the form completely and accurately. The ROA form has 2 main sections.