Title 43Public LandsRelease 119-73not60

§1523 Power Requirements of Central Arizona Project and Augmentation of Lower Colorado River Basin Development Fund

Title 43 › Chapter 32— COLORADO RIVER BASIN PROJECT › Subchapter III— AUTHORIZED UNITS; PROTECTION OF EXISTING USES › § 1523

Last updated Apr 5, 2026|Official source

Summary

The Secretary must finish engineering and money studies and pick the best plan to provide power for the Central Arizona Project and to add money to the Lower Colorado River Basin Development Fund. The plan can include building hydroelectric plants and transmission, buying electricity, buying a share of plant capacity, or any mix of those things, and can involve non‑Federal partners. Nothing allows studying or building dams on the main Colorado River between Hoover Dam and Glen Canyon Dam. If the plan includes buying capacity from non‑Federal thermal power plants, the Secretary can make agreements to get part of their capacity and delivery to agreed points. Any power not needed for the Project can be sold for other uses, possibly bundled with Federal power sales to get better firm rates. Agreements must limit the U.S. to paying only its share of construction costs (not including interest during construction), based on the share of capacity it gets; the U.S. can pay in stages during design and construction, but no construction money (beyond preconstruction) is paid until all needed contracts about land, water, fuel, power, rights‑of‑way, transmission and similar matters are in place. Operation and maintenance costs are shared fairly by the same ratios; the U.S. pays for depreciation only as allowed when replacements are funded by the non‑Federal partner. The U.S. gets credit for any Federal land used, and U.S. costs do not include interest, financing charges, franchise fees, or other costs listed in the agreement. The Secretary must send the recommended plan to Congress by September 30, 1969, and the plan does not take effect until Congress approves it, except for actions already allowed under the agreements with non‑Federal plants. If a thermal plant in Arizona uses water diverted from the Colorado River basin above Lee Ferry, that water use counts toward Arizona’s 50,000 acre‑feet per year share under the Upper Colorado River Basin Compact.

Full Legal Text

Title 43, §1523

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(a)The Secretary is authorized and directed to continue to a conclusion appropriate engineering and economic studies and to recommend the most feasible plan for the construction and operation of hydroelectric generating and transmission facilities, the purchase of electrical energy, the purchase of entitlement to electrical plant capacity, or any combination thereof, including participation, operation, or construction by non-Federal entities, for the purpose of supplying the power requirements of the Central Arizona Project and augmenting the Lower Colorado River Basin Development Fund: Provided, That nothing in this section or in this chapter contained shall be construed to authorize the study or construction of any dams on the main stream of the Colorado River between Hoover Dam and Glen Canyon Dam.
(b)If included as a part of the recommended plan, the Secretary may enter into agreements with non-Federal interests proposing to construct thermal generating powerplants whereby the United States shall acquire the right to such portions of their capacity, including delivery of power and energy over appurtenant transmission facilities to mutually agreed upon delivery points, as he determines is required in connection with the operation of the Central Arizona Project. When not required for the Central Arizona Project, the power and energy acquired by such agreements may be disposed of intermittently by the Secretary for other purposes at such prices as he may determine, including its marketing in conjunction with the sale of power and energy from Federal powerplants in the Colorado River system so as to produce the greatest practicable amount of power and energy that can be sold at firm power and energy rates. The agreements shall provide among other things, that—
(1)the United States shall pay not more than that portion of the total construction cost, exclusive of interest during construction, of the powerplants, and of any switchyards and transmission facilities serving the United States, as is represented by the ratios of the respective capacities to be provided for the United States therein to the total capacities of such facilities. The Secretary shall make the Federal portion of such costs available to the non-Federal interests during the construction period, including the period of preparation of designs and specifications, in such installments as will facilitate a timely construction schedule, but no funds other than for preconstruction activities shall be made available by the Secretary until he determines that adequate contractual arrangements have been entered into between all the affected parties covering land, water, fuel supplies, power (its availability and use), rights-of-way, transmission facilities and all other necessary matters for the thermal generating powerplants;
(2)annual operation and maintenance costs shall be apportioned between the United States and the non-Federal interests on an equitable basis taking into account the ratios determined in accordance with the foregoing clause (1): Provided, however, That the United States shall share on the foregoing basis in the depreciation component of such costs only to the extent of provision for depreciation on replacements financed by the non-Federal interests;
(3)the United States shall be given appropriate credit for any interests in Federal lands administered by the Department of the Interior that are made available for the power plants and appurtenances;
(4)costs to be borne by the United States under clauses (1) and (2) shall not include (a) interest and interest during construction, (b) financing charges, (c) franchise fees, and (d) such other costs as shall be specified in the agreement.
(c)No later than one year from September 30, 1968, the Secretary shall submit his recommended plan to the Congress. Except as authorized by subsection (b) of this section, such plan shall not become effective until approved by the Congress.
(d)If any thermal generating plant referred to in subsection (b) of this section is located in Arizona, and if it is served by water diverted from the drainage area of the Colorado River system above Lee Ferry, other provisions of existing law to the contrary notwithstanding, such consumptive use of water shall be a part of the fifty thousand acre-feet per annum apportioned to the State of Arizona by article III(a) of the Upper Colorado River Basin Compact (63 Stat. 31).

Legislative History

Notes & Related Subsidiaries

Editorial Notes

References in Text

This chapter, referred to in subsec. (a), was in the original “this Act”, meaning Pub. L. 90–537, Sept. 30, 1968, 82 Stat. 885, known as the Colorado River Basin Project Act, which enacted this chapter and section 616aa–1, 620a–1, 620a–2, 620c–1, and 620d–1 of this title, amended section 616hh, 620, and 620a of this title, and enacted provisions set out as notes under section 620, 620k, and 1501 of this title. For complete classification of this Act to the Code, see

Short Title

note set out under section 1501 of this title and Tables.

Reference

Citations & Metadata

Citation

43 U.S.C. § 1523

Title 43Public Lands

Last Updated

Apr 5, 2026

Release point: 119-73not60