Air Bag Not Deploy problems of the 2000 Chevrolet C/k Pickups

I was involved in a head on collision with another vehicle, a larger GMC dually. I was traveling at 55 mph when the other vehicle entered my lane at near or equal speed and struck me head on. I had time to react by stomping the breaks but I seemed to not slow down. I had no where to turn all possible lanes of avoidance were blocked with smaller cars. The airbags did not deploy. . . It is my understanding that by law cars/light trucks are required by law to have airbags if they are 1998 or newer. I understand a light truck to be up to 8,600 lbs gross weight with payload. This standard includes my truck, I sustained sever injuries to my neck/chest and ruptured discs in my back resulting in emergency back surgery. If I had airbags I am sure my injuries would not have been nearely as server and I my have not lost so much. Someone is responsible for this and I would appreciate any and all assistance you can offer me. Thank you.