Document Locator NumberSummary: This is an example of a listing of document locator numbers.00 - File Location Code - Identifies the campus in which the form was filed.5 - Tax Class - Identifies the type of form.06 - Document Code - Identifies a type of document within a tax class.106 - Julian Date - Identifies the numeric day of the year (January 7 is 007)XXX - Blocking Series - Number assigned to each block of documents according to type of form and input (usually blocks of 15).00 - Serial Number - Identifies the sequence of the forms within a block (00-first).X - Year Digit - Identifies the year in which a document was processed.