Title 19, Customs DutiesRelease 119-110

§4731 Border Water Infrastructure Improvement Authority

Title 19 › CHAPTER 29 — UNITED STATES–MEXICO–CANADA AGREEMENT IMPLEMENTATION › SUBCHAPTER VII — ENVIRONMENT MONITORING AND ENFORCEMENT › Part B — Other Matters › § 4731

Last updated Sep 22, 2026|Official source

Summary

The EPA Administrator must work with eligible public entities to plan, design, build, operate, and maintain high‑priority treatment works in the U.S. part of the Tijuana River watershed. These projects must treat wastewater (including stormwater), nonpoint pollution, and other problems from cross‑border water flows that come from Mexico. The Administrator must report to Congress within 1 year after January 29, 2020, and every year after. Covered area: the U.S. portion of the Tijuana River watershed. Eligible public entities: certain federal bodies (U.S. Section of the International Boundary and Water Commission; Corps of Engineers; North American Development Bank; Department of State; and other federal agencies), the State of California, and local governments, Indian Tribes, regional water boards, or public wastewater utilities with jurisdiction. Treatment works: as defined in section 1292 of title 33.

Full Legal Text

Title 19, §4731

Customs Duties, Source: USLM XML via OLRC

(a)In general
The Administrator of the Environmental Protection Agency shall, in coordination with eligible public entities, carry out the planning, design, construction, and operation and maintenance of high priority treatment works in the covered area to treat wastewater (including stormwater), nonpoint sources of pollution, and related matters resulting from international transboundary water flows originating in Mexico.
(b)Report to Congress
Not later than 1 year after January 29, 2020, and annually thereafter, the Administrator shall submit to Congress a report on activities carried out pursuant to this section.
(c)Definitions
In this section: (1) Covered area
(2)Eligible public entities
The term “eligible public entities” means—
(A)the United States Section of the International Boundary and Water Commission;
(B)the Corps of Engineers;
(C)the North American Development Bank;
(D)the Department of State;
(E)any other appropriate Federal agency;
(F)the State of California; and
(G)any of the following entities with jurisdiction over any part of the covered area:
(i)A local government.
(ii)An Indian Tribe.
(iii)A regional water board.
(iv)A public wastewater utility.
(3)Treatment works
The term “treatment works” has the meaning given that term in section 1292 of title 33.

Reference

Citations & Metadata

Citation

19 U.S.C. § 4731

Title 19, Customs Duties

Last Updated

Sep 22, 2026

Release point: 119-110