The District of Columbia Certificate of Series Designation For Domestic Limited Liability Company is a document issued by the DC Department of Consumer and Regulatory Affairs (DORA) that establishes and designates a separate series of members, managers, limited liability company interests, or assets within a DC domestic LLC. This document is used to create multiple distinct series of members, managers, interests, or assets within the LLC and allows the LLC to segregate, manage, and protect different series from each other. The certificate must be signed by all members of the LLC and must be filed with the DORA in order to be valid. There are two types of District of Columbia Certificate of Series Designation For Domestic Limited Liability Company: Series of Members and Series of Assets. Series of Members is used to create different classes of members within a DC domestic LLC, such as members with different rights, voting privileges, or other entitlements. Series of Assets is used to create different series of assets within the LLC, such as assets with different ownership rights or liabilities.