All matters required to be filed by 220 CMR 5.00 shall be deemed to have been filed on the date of receipt by the Department. With respect to electronic filings, the document is filed on the date the Department receives the electronic filing if it is received during normal business hours. If the document is electronically filed on a weekend, holiday, or during hours when the Department is closed, the document will be deemed filed on the date when the Department is next open for business.
220 CMR, § 5.05