The filing office shall maintain a unique computer index of records. Each record shall be indexed by: Assignee or financing party; Assignor or grantor; File number; and Qualified rate order number. A record shall be retrievable by each index. All records shall be available on the filing office's website as imaged documents. All records shall be permanently maintained. Public Utilities Article, §7-542(d), Annotated Code of Maryland Effective date: March 26, 2007 (34:6 Md. R. 628)