Download application forms for accounts and services, get information about credit union fees and more from Suffolk Credit Union in NY. Explore online. 1. Enter the bank name at the top of the letter.The Letter of Instruction must be signed in the presence of the individual guaranteeing your signature. The collection instruction must indicate that the collection is subject to URC 522 and give complete and precise instructions. Exemption applications must be filed with your local assessor's office. See our Municipal Profiles for your local assessor's mailing address. This handbook serves as a general purpose guide to your duties and responsibilities as a pistol license holder in Suffolk County. Such letters must bear an official bank signature and bank seal. Most Current Award letter for any Fixed income. (ex: SSI, SSDI, Disability, Pension, Child Support, etc.) All Bank Statements received in the last 90 days.