Porsche 928 ST1991 Owner's Manual page 125

These warranties are provided by
PORSCHE CARS NORTH AMERICA, INC.
Porsche Cars North America, Inc.,
100 West Liberty Street,
P.O.Box 30911,
Reno, Nevada 89520-3911
is the sole importer and distributor of Porsche vehicles
in the United States and offers these warranties on U.S.
model vehicles only.
Services performed by your authorized
dealer will be recorded in the maintenance
record by your service adviser.
(Pocket for Customer Identification Card)