(a) In general
Subject to the availability of appropriations designated by statute as being for the purpose of carrying out this section, the Secretary may carry out projects for underserved community harbors for purposes of sustaining water-dependent commercial and recreational activities at such harbors.

(b) Beneficial use

(1) Justification
The Secretary may carry out a project under this section involving a disposal option for the beneficial use of dredged material that is not the least cost disposal option if the Secretary determines that the incremental cost of the disposal option is reasonable pursuant to the standard described in section 2326(d)(1) of this title.

(2) Cost share
The non-Federal share of the incremental cost of a project carried out under this section involving a disposal option for the beneficial use of dredged material that is not the least cost disposal option shall be determined as provided under subsections (a) through (d) of section 2213 of this title.

(c) Prioritization
The Secretary shall prioritize carrying out projects using funds made available under this section based on an assessment of—

(1) the local or regional economic benefits of the project;

(2) the environmental benefits of the project, including the benefits to the aquatic environment to be derived from the creation of wetland and control of shoreline erosion; and

(3) other social effects of the project, including protection against loss of life and contributions to local or regional cultural heritage.

(d) Clarification
The Secretary shall not require the non-Federal interest for a project carried out under this section to perform additional operation and maintenance activities at the beneficial use placement site or the disposal site for such project as a condition of receiving assistance under this section.

(e) Federal participation limit
The Federal share of the cost of a project under this section shall not exceed $10,000,000.

(f) Statutory construction
Projects carried out under this section shall be in addition to operation and maintenance activities otherwise carried out by the Secretary for underserved community harbors using funds appropriated pursuant to section 2238 of this title or section 102(a) of the Water Resources Development Act of 2020 (33 U.S.C. 2238 note).

(g) Definitions
In this section:

(1) Project
The term "project" means a single cycle of maintenance dredging of an underserved community harbor and any associated placement of dredged material at a beneficial use placement site or disposal site.

(2) Underserved community harbor
The term "underserved community harbor" means an emerging harbor (as defined in section 2238(f) of this title) for which—

(A) no Federal funds have been obligated for maintenance dredging in the current fiscal year or in any of the 4 preceding fiscal years; and

(B) State and local investments in infrastructure have been made during any of the 4 preceding fiscal years.

(h) Authorization of appropriations

(1) In general
There is authorized to be appropriated to carry out this section $50,000,000 from the General Fund of the Treasury for each of fiscal years 2023 through 2026, to be deposited into the "corps of engineers—civil—operation and maintenance" account.

(2) Special rule
Not less than 35 percent of the amounts made available to carry out this section for each fiscal year shall be used for projects involving the beneficial use of dredged material.