What fire extinguisher rating and location requirement applies to hot thermoplastic melters and asphalt kettles under Cal/OSHA regulations?

1. Minimum 2-A rating fire extinguisher mounted inside the truck cab.
2. Minimum 5-B rating fire extinguisher located within 100 feet.
3. Minimum 20-B:C rating fire extinguisher within 25 feet of the kettle.
4. No fire extinguisher is required if water hoses are pressurized nearby.