• Attach voided check or bank letter from the bank or credit union and ACH Authorized signer form. Below you will find links to useful forms and documents for easy and convenient access.1. In the sample letter, fill in your personal information. Attachment 6: Match Documentation includes a copy of contract, grant award letter, donation letter, organization certification, etc. The Improvement Plan Check Policies and Guidelines is a document to help you process improvement plans through the Transportation Department. Medi-Cal Letter Templates. Students are advised to complete major preparation courses for letter grades. Naming the County of Riverside, letter of credit or cash.