You may complete an on-line application at the Contra Costa Human Resources Department at 651 Pine St., 2nd Floor, Martinez, CA 94553. Use our Form Filler to fill out your form and print it.For the best experience, use a desktop or laptop computer. To submit a claim, fill out the "Employee" section of the DWC-1. Keep one copy of this form and give the remaining pages to your supervisor. What is the Close Date on a job posting? How do I complete an online application? CCCERA requires a copy of the following documents to process your retirement: Your birth certificate or passport. Before you complete this petition, read the Instructions for Filing a Petition for Change of Name (form NC100INFO).