Schedule of Hazards: Class Codes/Exposures/Rates

I have recently been writing a lot of commercial lines. The main thing I am confused about right now is the schedule of hazards section in the ACORD 126 form. To make a long story short, I have been submitting some larger accounts (100K+) through a wholesale broker. He said all my work looks great, but I need to properly fill out the CGL class codes and rates. I have found how to look up the class codes, but can not figure out how look up the rates, exposures, territories, or premium basis. My wholesale rep told me he had no clue how to do it but made it sound like I has going to get sued if I

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