American Express offers primary damage and theft insurance on rentals with the Premium Car Rental Protection program (PCRP).
This is supplemental insurance. Travelers will be charged $19.95 or $24.95 per rental, depending on coverage, for rentals of up to 42 consecutive days.

Premium Car Rental Protection is underwritten by AMEX Assurance Company, Administrative Office, Green Bay, WI. Coverage is subject to the terms, conditions, and exclusions of Master Policy AX0456. This program may be modified, terminated, or suspended upon notice to you. 1 Except vehicles rented in Australia, Ireland, Israel, Italy, Jamaica and New Zealand. Other restrictions apply. Please be aware that New York residents are not eligible to enroll at this time. FEATURES: Coverage is activated when you use your enrolled Card to reserve and pay for the Rental Auto, Coverage is for you and your Passengers, Up to $100,000 for theft of or damage to the rental car, Up to $100,000 for Accidental Death or Dismemberment (up to $10,000 for a Passenger), For California Residents, up to $250,000 for Accidental Death or Dismemberment for the Cardmember and each Passenger, Up to $15,000 per person for medical expenses, Up to $5,000 per person for theft of personal property, Check your claim status online, Certain limitations and restrictions apply.


https://www152.americanexpress.com/fsea/travel/car_rental/product.do