# Fully Distributed Cost Study

- **operation:** document
- **citation:** 4 CCR 723-4 Rule 4504
- **title:** Fully Distributed Cost Study
- **source type:** regulation
- **agency:** Colorado Public Utilities Commission
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** Not available
- **summary:** (a) The utility shall submit its fully distributed cost study in both electronic and paper format simultaneously with filing its CAAM for all Colorado divisions and activities. (b) The utility shall prepare a FDC study that identifies all the non-regulated activities provided by each division in Col
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/co-ccr-4-723-4-4504.json
- **markdown:** https://regulus.evalyn.ai/document/co-ccr-4-723-4-4504.md
- **app url:** https://regulus.evalyn.ai/document/co-ccr-4-723-4-4504
- **source url:** https://www.sos.state.co.us/CCR/DisplayRule.do?action=ruleinfo&ruleId=2260&deptID=18&agencyID=96&deptName=Department%20of%20Regulatory%20Agencies&agencyName=Public%20Utilities%20Commission&seriesNum=4%20CCR%20723-4
**body:**

(a) The utility shall submit its fully distributed cost study in both electronic and paper
format simultaneously with filing its CAAM for all Colorado divisions and
activities.
(b) The utility shall prepare a FDC study that identifies all the non-regulated activities
provided by each division in Colorado. The FDC study shall show the revenues,
expenses assets, liabilities and rate base items assigned and allocated to each
non-regulated activity. If the utility has more than one division (e.g., gas, electric,
thermal or non-utility) in Colorado, the FDC study shall include a summary of all
assigned and allocated costs by division.
(c) In preparation of its FDC study, the utility shall complete an analysis of each non-
regulated activity to identify the costs that are associated with and/or should be
charged to each non-regulated activity to ensure each non-regulated activity is
assigned and allocated the appropriate amount of revenues, expenses, assets,
liabilities and rate base items.
(d) If the CAAM is filed in connection with a rate case, the FDC study shall be based
on the same test year used in the utility’s rate case filing. The utility’s FDC study
shall include revenues, expenses, assets, liabilities and rate base items in order
for the Commission to determine if all appropriate revenues, expenses, assets,
liabilities and rate base items have been appropriately assigned and allocated,
and to determine the utility’s compliance with the principles established in rule
4502. For each assignment and allocation the utility shall:
(I) identify the revenues, expenses, assets, liabilities and rate base items by
account number, sub-account number and account description; and

(II) for each account in (I) above, identify the assignment and allocation
method used to assign and allocate costs in sufficient detail to verify the
assignment and allocation method used to assign and allocate costs to
Colorado divisions and activities is accurate and consistent with the
utility’s CAAM methodology and reference the CAAM section that
describes the allocation; and
(III) provide the test year dollar itemized amounts of revenues, expenses,
assets, liabilities, and rate base assigned and allocated to each Colorado
division and non-regulated activity; the itemized amounts assigned and
allocated to the Colorado utility for regulated activities; the itemized
amounts assigned and allocated to the Colorado utility for Colorado non-
regulated activities; and the itemized amounts assigned and allocated to
other jurisdictions.
(e) Each utility shall maintain all records and supporting documentation concerning
its FDC study for so long as such study is in effect or are subject to a complaint
or a proceeding before the Commission.
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