Ill. Admin. Code tit. 83, § 505.210
General Instruction 1, "Classification of Utilities," is deleted and replaced by the following:
"A. This system of accounts applies to all utilities; provided, however, if in the opinion of any utility having annual operating revenues of less than $10,000,000, this system of accounts should prove to be unduly burdensome, such utility may, with the approval of the Director of Accounting of the Commission, group or combine certain accounts herein in order that the accounting requirements for small utilities may conform more nearly to the nature and volume of business transacted. Requests to group or combine accounts shall be made in writing, including a statement of the proposed modifications. In determining whether this system of accounts is unduly burdensome with respect to a utility, the Director of Accounting shall consider, among other things, whether compliance will require additional resources. The Director of Accounting shall make this determination within six months of receiving the written request. Having obtained such approval, the utility shall continue to use the system as modified on a consistent basis.
(Source: Amended at 22 Ill. Reg. 9543, effective June 1, 1998)