If it is impractical to furnish any required information, document, or report at the time it is required to be filed, there shall be filed with the Commissioner a separate document:
(1) Identifying the information, document, or report in question.
(2) Stating why the filing thereof at the time required is impractical.
(3) Requesting an extension of time for filing the information, document, or report to a specified date. The request for extension shall be deemed granted unless the Commissioner after receipt of the request denies the request prior to the time the information, document, or report is required.