Hertz CDP Codes Explained — What They Are and How to Use Them
If you've seen a field labelled "CDP Number" on Hertz's booking page and assumed it was only for corporate travellers — this guide explains exactly what CDP codes are, the different types available, which ones you might already qualify for, and how to use them safely alongside Hertz coupons.
What Is a Hertz CDP Code?
CDP stands for Corporate Discount Program. It is a numeric code that Hertz assigns to a specific organisation, employer, membership group, promotion, or booking channel. When you enter a CDP at booking, Hertz's system applies the pre-negotiated or promotional rate associated with that code to your rental.
An important point many renters miss: CDP codes are not exclusively for corporate or membership customers. Hertz also uses CDP numbers to deliver promotional rates — seasonal discounts, partner offers, and channel-specific pricing available to any renter with no membership required. If you've ever seen a Hertz promotion with a code to enter at booking, that code was almost certainly a CDP.
The three main types of Hertz CDP code:
| CDP Type | Who It's For | Examples | Proof Required at Pickup |
|---|---|---|---|
| Membership / Affiliation | Members of a specific organisation | AAA, AARP, Mastercard, Visa, Costco, military, union, teacher, nurse/healthcare, senior | Yes — membership card or qualifying ID |
| Corporate / Employer | Employees of a company with a negotiated Hertz rate | Corporate travel programs, government agencies, universities | Sometimes — check employer policy |
| Promotional | Anyone — no membership required | Seasonal offers, partner promotions, channel-specific rates, booking site discounts | No — promotional CDPs are open to all |
Promotional CDP Codes — Not Just for Members
Many renters see the CDP field and assume it's only for corporate accounts or loyalty members — so they leave it blank. This is one of the most costly mistakes in Hertz booking. Hertz regularly issues promotional CDP codes that any renter can use with no membership required and no proof needed at pickup.
How promotional CDP codes work:
- Seasonal promotions — Hertz issues promotional CDP codes for specific travel periods, destinations, or vehicle classes
- Partner channel discounts — booking through specific travel sites or credit card portals sometimes unlocks a CDP that reduces the base rate below Hertz's standard page pricing
- CarRentalSavers.com partner CDPs — our Smart Book engine includes promotional CDP codes built into the discount dropdown, giving access to rates that may not be available elsewhere
Where to Find Your Hertz CDP Code
Membership and Affiliation CDPs
| Organisation | How to Access the CDP | Notes |
|---|---|---|
| AAA | Applied automatically when AAA discount is selected on CarRentalSavers.com | AAA card required at pickup. AAA members aged 20+ have the underage surcharge waived — one of the most valuable Hertz CDP benefits available |
| AARP | Applied automatically when AARP discount is selected on CarRentalSavers.com | AARP membership card required at pickup. Available to members 50+ |
| Mastercard | Applied automatically when Mastercard discount is selected on CarRentalSavers.com | Must pay with an eligible Mastercard at pickup |
| Visa | Applied automatically when Visa discount is selected on CarRentalSavers.com | Must pay with an eligible Visa card at pickup |
| Costco | Applied automatically when Costco discount is selected on CarRentalSavers.com | Costco membership card required at pickup |
| Military | Applied automatically when military discount is selected on CarRentalSavers.com | Valid military ID required at pickup |
| Senior (50+) | Applied automatically when senior discount is selected on CarRentalSavers.com | Available to renters aged 50 and over |
| Union Plus | Applied automatically when Union Plus discount is selected on CarRentalSavers.com | Union membership required at pickup |
| Teachers | Applied automatically when teacher discount is selected on CarRentalSavers.com | Valid educator credentials required at pickup |
| Nurses / Healthcare | Applied automatically when healthcare discount is selected on CarRentalSavers.com | Healthcare credentials required at pickup |
The AAA CDP — Special Underage Fee Waiver
The Hertz AAA CDP carries a benefit that no other Hertz CDP provides: AAA members aged 20 and over have the young driver underage surcharge waived entirely. Most agencies charge $15–$52/day for drivers aged 20–24. At Hertz with the AAA CDP applied, that fee does not apply for AAA members who are 20 or older. This can save hundreds of dollars on a week-long rental for drivers in this age group — often more than the CDP percentage discount itself.
Corporate / Employer CDPs
Many companies have negotiated a corporate CDP with Hertz for their employees:
- Check your company's travel policy or intranet — corporate travel codes are typically listed there
- Contact your HR or travel department and ask for the Hertz CDP number
- Enter the CDP at checkout when booking through CarRentalSavers.com — it can often be used for personal rentals if your employer permits this
Promotional CDPs
- CarRentalSavers.com discount dropdown — promotional CDPs available to all renters are built into the dropdown. Always check before searching even without a membership
- Hertz.com promotional pages — Hertz advertises promotional CDP codes during seasonal campaigns
- Hertz email offers — signing up for Hertz emails can deliver promotional CDP codes not available on the standard booking page
How to Apply a Hertz CDP — Safely, Alongside a Coupon
On CarRentalSavers.com (recommended):
- Go to carrentalsavers.com/hertz
- Enter your pickup location, dates, and times
- Select your Hertz discount from the discount dropdown — this applies your CDP in the correct field
- Select a Hertz coupon from the coupon dropdown — only verified active codes are shown
- Click Search — results show the combined total with Pay Later rates visible
- At checkout, enter your Hertz Gold Plus Rewards number if you have one
