2020—Pub. L. 116–260 inserted “, and projects that use natural features or nature-based features (as those terms are defined in section 2289a(a) of this title),” after “nonstructural projects”.

2018—Pub. L. 115–270 substituted “$68,750,000” for “$55,000,000” in first sentence.

2014—Pub. L. 113–121 substituted “$10,000,000” for “$7,000,000” in third sentence.

2007—Pub. L. 110–114 substituted “$55,000,000” for “$50,000,000” in first sentence.

2000—Pub. L. 106–541 substituted “$50,000,000” for “$40,000,000” in first sentence.

1999—Pub. L. 106–53, in first sentence, substituted “implementation of small structural and nonstructural projects” for “construction of small projects” and, in third sentence, substituted “$7,000,000” for “$5,000,000”.

1986—Pub. L. 99–662 substituted “$40,000,000” for “$30,000,000” and “$5,000,000” for “$4,000,000”.

1981—Pub. L. 97–140 substituted “Not more than $4,000,000 shall be allotted under this section for a project at any single locality” for “Not more than $2,000,000 shall be allotted under this section for a project in any single locality, except that not more than $3,000,000 shall be allotted under this section for a project at a single locality if such project protects an area which has been declared to be a major disaster area pursuant to the Disaster Relief Act of 1966 or the Disaster Relief Act of 1970 in the five-year period immediately preceding the date the Chief of Engineers deems such work advisable”.

1976—Pub. L. 94–587 increased limitation on allotment for a project at a single locality from $1,000,000 to $2,000,000 and for such a project protecting a major disaster area from $2,000,000 to $3,000,000.

1974—Pub. L. 93–251, in revising provisions, increased fiscal year allotment to $30,000,000 from $25,000,000 and required allotment of $2,000,000 for a project at a single locality if such locality protects an area declared to be a major-disaster area pursuant to Disaster Relief Act of 1966 or Disaster Relief Act of 1970 in five-year period immediately preceding the date the Chief of Engineers deems such work advisable.

1962—Pub. L. 87–874 substituted “$25,000,000” for “$10,000,000”, “projects for flood control and related purposes” for “flood control projects”, and provisions limiting the allotment for a single project to $1,000,000 and providing that such allotment shall be sufficient to complete Federal participation, for provisions limiting the allotment for any single project to $400,000 from the appropriations for any fiscal year.

1956—Act July 11, 1956, substituted “$10,000,000” for “$3,000,000”, struck out “and not within areas intended to be protected by projects so authorized” before “which come within the provisions of section 701a of this title”, and substituted “$400,000” for “$150,000”.

1950—Act May 17, 1950, substituted “$3,000,000” for “$2,000,000” and “$150,000” for “$100,000”.

Amendment by Pub. L. 99–662 not applicable to any project under contract for construction on Nov. 17, 1986, see section 915(i) of Pub. L. 99–662, set out as a note under section 426g of this title.

Pub. L. 97–140, § 2(b), Dec. 29, 1981, 95 Stat. 1717, provided that: “The amendment made by this section [amending this section] shall not apply to any project under contract for construction on the date of enactment of this Act [Dec. 29, 1981].”

Amendment by Pub. L. 94–587 not applicable to any project under contract for construction on Oct. 22, 1976, see section 133(c) of Pub. L. 94–587, set out as a note under section 577 of this title.

Pub. L. 114–322, title I, § 1150, Dec. 16, 2016, 130 Stat. 1661, as amended by Pub. L. 115–270, title I, § 1131, Oct. 23, 2018, 132 Stat. 3780, provided that: