Documents must be in a Portable. Document Format (PDF).The eSubmit portal will accept up to 15 documents and one case per submission. Filing Cut-Off Time. EFiling is often the fastest, safest, and easiest way to submit your legal paperwork to the county clerk for approval. The Riverside Superior Court of California's list of frequently asked questions to assist filers efiling new cases, or into existing cases. The Court's Civil eFiling Webinar provides a video rundown of all the points you'll need to know when you file electronically into Riverside Superior Court. An eFiling guide to File on an Existing Case in the Riverside, California Superior Courts and electronically serve your documents. The last day to file your manuscript is typically the last business day of the quarter. This file contains the order form for Iowa Assessments and CogAT scoring services.