(c) A person wishing to receive a date stamped copy of any paper filing shall file one copy in addition to the requirements of paragraph (a) of this rule. If the person desires that the Commission mail the date stamped copy of the paper filing, the person shall also include a self-addressed envelope with adequate postage affixed. 2 For example, if a tariff has a 30-day notice period requirement, a tariff filed on June 1 could, at the earliest, have an effective date of July 2. A tariff filed on July 1 could, at the earliest, have an effective date of August 1.