https://twitter.com/NationalPro/status/842752401438269443
Promotion Entry Period: Promotion will commence on or after 9:00 A.M. on March 17, 2017, with Sponsor’s posting of a tweet asking others to tweet their favorite benefit of the National Car Rental Emerald Club, as described below, and ending at 11:59:59 P.M. on March 31, 2017 (the “Entry Period”).
How to Enter: You may receive one (1) Contest entry (each an “Entry”) during the Entry Period [however, the rules later state “Limit of one (1) entry per person per day”] by tweeting your favorite benefit of the National Car Rental Emerald Club, as described below (each a “Submission”), using the hashtag (#) #EmeraldClub30. [However, the linked tweet has the hashtag #EmeraldClub30Sweepstakes so you should probably use that.]
Prizes: A maximum of thirty (30) prizes will be awarded. Each prize will include one (1) thirty dollar ($30.00 USD) TANGO Gift Card (approximate retail value (“ARV”) $30.00).