Maryland Insurance Section 3-305

      A report, affidavit, or return that must be filed under this subtitle complies with the filing requirement if the report, affidavit, or return is:

            (1)      mailed and postmarked by the United States Postal Service on or before the filing date; or

            (2)      delivered on or before the filing date to a private delivery service recognized by the Commissioner, if the delivery is evidenced by a receipt.