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43 U.S.C. 2427: Water rightsText contains those laws in effect through Public Law 119-120 (October 7, 2026).
From Title 43-PUBLIC LANDSCHAPTER 42-RURAL WATER SUPPLY
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§2427. Water rights

(a)  In general

Nothing in this subchapter preempts or affects State water law or an interstate compact governing water.

(b)  Compliance required

The Secretary shall comply with State water laws in carrying out this subchapter. Nothing in this subchapter affects or preempts State water law or an interstate compact governing water.

( Pub. L. 109–451, title II, § 208 , Dec. 22, 2006 , 120 Stat. 3360 .)