Promotion Code must be provided at time of reservation or offer is void. Advance reservations required. Modifying your reservation may result in a change in your rate and/or invalidate this offer. Rate subject to increase or fees may apply in the event of early / late vehicle return. Offer is not valid on One-Way rentals. Offer valid at airport only. Vehicle must be returned to renting location to avoid change in rate or drop charge. Subject to availability, this offer is available at participating Hertz locations in the US and Canada. Free Day offer requires a three (3) day minimum vehicle keep. Qualifying weekend days include Friday, Saturday, and Sunday. Maximum rental days subject to certain rental restrictions. Free Day offer is valid on all car classes except Dream cars and Shelby GTH. Offer has no cash value, may not be used with Pre-Pay Rates, Tour Rates, Insurance Replacement Rates or Hourly Rentals and cannot be combined with any other certificate, voucher, offer or promotion. Offer is not valid with CDP discounts. Age, driver, credit and qualifying rate restrictions for the renting location apply. Taxes, tax reimbursement, age differential charges, fees, surcharges and optional service charges, such as refueling, are not included. Blackouts may apply. Offer valid for vehicle pick-up on or before January 31, 2017.