This is typcially the coverage you buy from a rental car company it is collision and comprehensive coverage for the vehicle you have rented, and most of these contracts I have seen still have a deductible although the wording implies different, check the contract over good...
If you don't have lost damage waiver, you might have to pay for the damages.
collission damage with no excess
"Damage Waiver".
Collision Damage Waiver
This would depend on the insurance that you took out with your car rental company. Check the contract that you signed. Often there is a Damage Waiver and a Theft Waiver. Usually the theft waiver is double that of the damage.
"Hertz, offers a loss damage waiver, partial damage waiver, limited loss damage waiver, liability insurance supplement, personal accident insurance, and more. These are available at time of purchase and included in daily rentals. More detail information can be found on the website."
The forthcoming insurance companies offer collision insurances: Insurance4CarHire, Auto Rental Collision Damage Waiver, Rental Cars and the Collision Damage Waiver, etc.
Usually the waiver only reduces the excess you pay.
That's your Collision Damage Waiver -- the insurance you purchased on the rental when you rented it.
The CDW (Collision Damage Waiver) insurance covers the following: Liability, collision, theft and other damage. This sort of insurance is offered by car rental companies.
judicial, prosecutorial waiver and legislative waiver
If you agree to and sign a waiver of liability, and for example you are a pizza delivery guy. You waive (give up) any claims of damage to your car, even while using it on the job. If you have an accident you can not hold the company respponsible for damages to your car.