(1) Applications for rate increases exceeding $500,000 annually shall include, minimally, the information required in ARM 38.5.2808 through 38.5.2820. Applications for rate increases not exceeding $500,000 annually shall contain such information the utility feels will allow the commission to adequately evaluate the request for an increase in rates. Additional information may be required by the commission or its staff subsequent to the time of filing.

(2) The original and ten copies of the letter of transmittal, the application, all testimony, and all statements required in ARM 38.5.2808 through 38.5.2820 inclusive shall be submitted to the commission at the date of filing. Montana consumer counsel shall receive two copies of the same materials.

(3) One copy of all of the material required in these rules shall be submitted on computer diskettes compatible with either IBM personal computers or an IBM System 36 where possible.

(4) All or any part of the requirements of these rules may be waived by a quorum of the commission upon a showing of good cause. Waiver of any requirements, however, shall not preclude the commission from requiring the filing of specific cost data and material sufficient to support the application.