ST. LOUIS — After a five-year hiatus, National Car Rental has brought back one of its most popular promotions: ONE TWO FREE.

Emerald Club members in Canada and the U.S. who have registered for ONE TWO FREE can earn one promotional free rental day (base rate, i.e. time and mileage only) with every two eligible midsize or larger vehicle rentals of at least two consecutive days through June 22.

Members can earn promotional free rental days when renting from participating National Car Rental and Enterprise Rent-A-Car locations in Canada and the U.S.

“Back by popular demand, ONE TWO FREE helps our loyal customers earn free rental days faster, simply by registering and renting,” said Liz Ott, VP Global Brand Strategy at Enterprise Mobility.

There is no limit to the number of promotional free days a member can earn, which are in addition to the standard free days or partner rewards Emerald Club members already earn through the loyalty program. Renters have until the end of this calendar year to redeem the promotional free days they earn as part of ONE TWO FREE.

Promotional free rental days may be used on any vehicle rental (compact through full-size) at participating rental locations in Canada and the U.S.

Emerald Club terms and conditions can be found at emeraldclub.com. Membership in Emerald Club is free and open to anyone 21 years and older.