Class A. Utilities having annual electric operating revenues of $2,500,000 or more.
Class B. Utilities having annual electric operating revenues of $1,000,000 or more but less than $2,500,000.
Class C. Utilities having annual electric operating revenues of $150,000 or more but less than $1,000,000.
Class D. Utilities having annual electric operating revenues of $25,000 or more but less than $150,000.
N.Y. Comp. Codes R. & Regs. Tit. 16 § 166.1