---
kind: "section"
citation: "42 U.S.C. § 247b–21"
title: "42"
title_heading: "The Public Health and Welfare"
number: "247b–21"
heading: "Mosquito-borne diseases; coordination grants to States; assessment and control grants to political subdivisions"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/42/247b-21"
units:
  - "Chapter 6A — Public Health Service"
  - "Subchapter II — General Powers and Duties"
  - "Part B — Federal-State Cooperation"
---

# §247b–21. Mosquito-borne diseases; coordination grants to States; assessment and control grants to political subdivisions

- (a) **Coordination grants to States; assessment grants to political subdivisions—**
  - (1) **In general—** With respect to mosquito control [programs](/usc/42/274l–1.md?p=4) to prevent and control mosquito-borne diseases (referred to in this section as “control [programs](/usc/42/274l–1.md?p=4)”), the [Secretary](/usc/42/201.md?p=c), acting through the [Director](/usc/42/11851.md?p=5) of the Centers for Disease Control and Prevention, may make grants to [States](/usc/42/201.md?p=f) for the purpose of—
    - (A) coordinating control [programs](/usc/42/274l–1.md?p=4) in the [State](/usc/42/201.md?p=f) involved; and
    - (B) assisting such [State](/usc/42/201.md?p=f) in making grants to political subdivisions of the [State](/usc/42/201.md?p=f) to conduct assessments to determine the immediate needs in such subdivisions for control [programs](/usc/42/274l–1.md?p=4), including [programs](/usc/42/274l–1.md?p=4) to address emerging infectious mosquito-borne diseases, and to develop, on the basis of such assessments, plans for carrying out control [programs](/usc/42/274l–1.md?p=4) in the subdivisions or improving existing control [programs](/usc/42/274l–1.md?p=4).
  - (2) **Preference in making grants—** In making grants under [paragraph (1)](#a-1), the [Secretary](/usc/42/201.md?p=c) shall give preference to [States](/usc/42/201.md?p=f) that have one or more political subdivisions with an incidence, prevalence, or high risk of mosquito-borne disease, or a population of infected mosquitoes, that is substantial relative to political subdivisions in other [States](/usc/42/201.md?p=f).
  - (3) **Certain requirements—** A grant may be made under [paragraph (1)](#a-1) only if—
    - (A) the [State](/usc/42/201.md?p=f) involved has developed, or agrees to develop, a plan for coordinating control [programs](/usc/42/274l–1.md?p=4) in the [State](/usc/42/201.md?p=f), and the plan takes into account any assessments or plans described in [subsection (b)(3)](#b-3) that have been conducted or developed, respectively, by political subdivisions in the [State](/usc/42/201.md?p=f);
    - (B) in developing such plan, the [State](/usc/42/201.md?p=f) consulted or will consult (as the case may be under [subparagraph (A)](#a-3-A)) with political subdivisions in the [State](/usc/42/201.md?p=f) that are carrying out or planning to carry out control [programs](/usc/42/274l–1.md?p=4);
    - (C) the [State](/usc/42/201.md?p=f) agrees to monitor control [programs](/usc/42/274l–1.md?p=4) in the [State](/usc/42/201.md?p=f) in order to ensure that the [programs](/usc/42/274l–1.md?p=4) are carried out in accordance with such plan, with priority given to coordination of control [programs](/usc/42/274l–1.md?p=4) in political subdivisions described in [paragraph (2)](#a-2) that are contiguous;
    - (D) the [State](/usc/42/201.md?p=f) agrees that the [State](/usc/42/201.md?p=f) will make grants to political subdivisions as described in [paragraph (1)(B)](#a-1-B), and that such a grant will not exceed $10,000; and
    - (E) the [State](/usc/42/201.md?p=f) agrees that the grant will be used to supplement, and not supplant, [State](/usc/42/201.md?p=f) and local funds available for the purpose described in [paragraph (1)](#a-1).
  - (4) **Reports to Secretary—** A grant may be made under [paragraph (1)](#a-1) only if the [State](/usc/42/201.md?p=f) involved agrees that, promptly after the end of the fiscal year for which the grant is made, the [State](/usc/42/201.md?p=f) will submit to the [Secretary](/usc/42/201.md?p=c) a report that—
    - (A) describes the activities of the [State](/usc/42/201.md?p=f) under the grant; and
    - (B) contains an evaluation of whether the control [programs](/usc/42/274l–1.md?p=4) of political subdivisions in the [State](/usc/42/201.md?p=f) were effectively coordinated with each other, which evaluation takes into account any reports that the [State](/usc/42/201.md?p=f) received under [subsection (b)(5)](#b-5) from such subdivisions.
  - (5) **Number of grants—** A [State](/usc/42/201.md?p=f) may not receive more than one grant under [paragraph (1)](#a-1).
- (b) **Prevention and control grants to political subdivisions—**
  - (1) **In general—** The [Secretary](/usc/42/201.md?p=c), acting through the [Director](/usc/42/11851.md?p=5) of the Centers for Disease Control and Prevention, may make grants to political subdivisions of [States](/usc/42/201.md?p=f) or consortia of political subdivisions of [States](/usc/42/201.md?p=f), for the operation, including improvement, of control [programs](/usc/42/274l–1.md?p=4).
  - (2) **Preference in making grants—** In making grants under [paragraph (1)](#b-1), the [Secretary](/usc/42/201.md?p=c) shall give preference to a political subdivision or [consortium](/usc/42/17061.md?p=4) of political subdivisions that—
    - (A) has—
      - (i) a history of elevated incidence or prevalence of mosquito-borne disease;
      - (ii) a population of infected mosquitoes;
      - (iii) met criteria determined by the [Secretary](/usc/42/201.md?p=c) to suggest an increased risk of elevated incidence or prevalence of mosquito-borne disease in the pending fiscal year, including an emerging infectious mosquito-borne disease that presents a serious public health threat; or
      - (iv) a public health emergency due to the incidence or prevalence of a mosquito-borne disease that presents a serious public health threat;
    - (B) demonstrates to the [Secretary](/usc/42/201.md?p=c) that such political subdivision or [consortium](/usc/42/17061.md?p=4) of political subdivisions will, if appropriate to the mosquito circumstances involved, effectively coordinate the activities of the control [programs](/usc/42/274l–1.md?p=4) with contiguous political subdivisions;
    - (C) demonstrates to the [Secretary](/usc/42/201.md?p=c) (directly or through [State](/usc/42/201.md?p=f) officials) that the [State](/usc/42/201.md?p=f) in which such a political subdivision or [consortium](/usc/42/17061.md?p=4) of political subdivisions is located has identified or will identify geographic areas in such [State](/usc/42/201.md?p=f) that have a significant need for control [programs](/usc/42/274l–1.md?p=4) and will effectively coordinate such [programs](/usc/42/274l–1.md?p=4) in such areas; and
    - (D)
      - (i) is located in a [State](/usc/42/201.md?p=f) that has received a grant under [subsection (a)](#a); or
      - (ii) that[^1] demonstrates to the [Secretary](/usc/42/201.md?p=c) that the control [program](/usc/42/274l–1.md?p=4) is consistent with existing [State](/usc/42/201.md?p=f) mosquito control plans or policies, or other applicable [State](/usc/42/201.md?p=f) preparedness plans.
  - (3) **Requirement of assessment and plan—** A grant may be made under [paragraph (1)](#b-1) only if the political subdivision or [consortium](/usc/42/17061.md?p=4) of political subdivisions involved—
    - (A) has conducted an assessment to determine the immediate needs in such subdivision or [consortium](/usc/42/17061.md?p=4) for a control [program](/usc/42/274l–1.md?p=4), including an entomological survey of potential mosquito breeding areas; and
    - (B) has, on the basis of such assessment, developed a plan for carrying out such a [program](/usc/42/274l–1.md?p=4).
  - (4) **Requirement of matching funds—**
    - (A) **In general—** With respect to the costs of a control [program](/usc/42/274l–1.md?p=4) to be carried out under [paragraph (1)](#b-1) by a political subdivision or [consortium](/usc/42/17061.md?p=4) of political subdivisions, a grant under such paragraph may be made only if the subdivision or [consortium](/usc/42/17061.md?p=4) agrees to make available (directly or through donations from public or private entities) non-Federal contributions toward such costs in an amount that is not less than ⅓ of such costs ($1 for each $2 of Federal funds provided in the grant).
    - (B) **Determination of amount contributed—** Non-Federal contributions required in [subparagraph (A)](#b-4-A) may be in cash or in kind, fairly evaluated, including plant, equipment, or [services](/usc/42/201.md?p=a). Amounts provided by the Federal Government, or [services](/usc/42/201.md?p=a) assisted or subsidized to any significant extent by the Federal Government, may not be included in determining the amount of such non-Federal contributions.
    - (C) **Waiver—** The [Secretary](/usc/42/201.md?p=c) may waive the requirement established in [subparagraph (A)](#b-4-A) if the [Secretary](/usc/42/201.md?p=c) determines that—
      - (i) extraordinary economic conditions in the political subdivision or [consortium](/usc/42/17061.md?p=4) of political subdivisions involved justify the waiver; or
      - (ii) the geographical area covered by a political subdivision or [consortium](/usc/42/17061.md?p=4) for a grant under [paragraph (1)](#b-1) has an extreme mosquito control need due to—
        - (I) the size or density of the potentially impacted human population;
        - (II) the size or density of a mosquito population that requires heightened control; or
        - (III) the severity of the mosquito-borne disease, such that expected serious adverse health outcomes for the human population justify the waiver.
  - (5) **Reports to Secretary—** A grant may be made under [paragraph (1)](#b-1) only if the political subdivision or [consortium](/usc/42/17061.md?p=4) of political subdivisions involved agrees that, promptly after the end of the fiscal year for which the grant is made, the subdivision or [consortium](/usc/42/17061.md?p=4) will submit to the [Secretary](/usc/42/201.md?p=c), and to the [State](/usc/42/201.md?p=f) within which the subdivision or [consortium](/usc/42/17061.md?p=4) is located, a report that describes the control [program](/usc/42/274l–1.md?p=4) and contains an evaluation of whether the [program](/usc/42/274l–1.md?p=4) was effective.
  - (6) **Number of grants—** A political subdivision or a [consortium](/usc/42/17061.md?p=4) of political subdivisions may not receive more than one grant under [paragraph (1)](#b-1).
- (c) **Applications for grants—** A grant may be made under subsection [(a)](#a) or [(b)](#b) only if an application for the grant is submitted to the [Secretary](/usc/42/201.md?p=c) and the application is in such form, is made in such manner, and contains such agreements, assurances, and information as the [Secretary](/usc/42/201.md?p=c) determines to be necessary to carry out this section.
- (d) **Technical assistance—** Amounts appropriated under [subsection (f)](#f) may be used by the [Secretary](/usc/42/201.md?p=c) to provide training and technical assistance with respect to the planning, development, and operation of assessments and plans under [subsection (a)](#a) and control [programs](/usc/42/274l–1.md?p=4) under [subsection (b)](#b). The [Secretary](/usc/42/201.md?p=c) may provide such technical assistance directly or through awards of grants or contracts to public and private entities.
- (e) **Definition of political subdivision—** In this section, the term “political subdivision” means the local political jurisdiction immediately below the level of [State](/usc/42/201.md?p=f) government, including counties, parishes, and boroughs. If [State](/usc/42/201.md?p=f) law recognizes an entity of general government that functions in lieu of, and is not within, a county, parish, or borough, the [Secretary](/usc/42/201.md?p=c) may recognize an area under the jurisdiction of such other entities of general government as a political subdivision for purposes of this section.
- (f) **Authorization of appropriations—**
  - (1) **In general—** For the purpose of carrying out this section, there are authorized to be appropriated $100,000,000 for each of fiscal years 2019 through 2023.
  - (2) **Public health emergencies—** In the case of control [programs](/usc/42/274l–1.md?p=4) carried out in response to a mosquito-borne disease that constitutes a public health emergency, the authorization of appropriations under [paragraph (1)](#f-1) is in addition to applicable authorizations of appropriations under this chapter and other medical and public health preparedness and response laws.
  - (3) **Fiscal year 2019 appropriations—** For fiscal year 2019, 50 percent or more of the funds appropriated under [paragraph (1)](#f-1) shall be used to award grants to political subdivisions or consortia of political subdivisions under [subsection (b)](#b).

## Footnotes

[^1]: So in original.

## Source credit

(July 1, 1944, ch. 373, title III, § 317S, as added Pub. L. 108–75, § 2(2), Aug. 15, 2003, 117 Stat. 898; amended Pub. L. 116–22, title VI, § 607(a), June 24, 2019, 133 Stat. 959.)

## Notes

### Editorial Notes

### Amendments

2019—Subsec. (a)(1)(B). Pub. L. 116–22, § 607(a)(1), inserted “including programs to address emerging infectious mosquito-borne diseases,” after “subdivisions for control programs,” and “or improving existing control programs” after “in the subdivisions”.

Subsec. (b)(1). Pub. L. 116–22, § 607(a)(2)(A), inserted “, including improvement,” after “operation”.

Subsec. (b)(2)(A)(iii). Pub. L. 116–22, § 607(a)(2)(B)(i)(II), substituted “, including an emerging infectious mosquito-borne disease that presents a serious public health threat; or” for semicolon at end.

Subsec. (b)(2)(A)(iv). Pub. L. 116–22, § 607(a)(2)(B)(i)(I), (III), added cl. (iv).

Subsec. (b)(2)(D). Pub. L. 116–22, § 607(a)(2)(B)(ii), amended subpar. (D) generally. Prior to amendment, subpar. (D) read as follows: “is located in a State that has received a grant under subsection (a).”

Subsec. (b)(4)(C). Pub. L. 116–22, § 607(a)(2)(C), substituted “that—” for “that extraordinary economic conditions in the political subdivision or consortium of political subdivisions involved justify the waiver.” and added cls. (i) and (ii).

Subsec. (b)(6). Pub. L. 116–22, § 607(a)(2)(D), amended par. (6) generally. Prior to amendment, par. (6) related to amount of grant and number of grants.

Subsec. (f)(1). Pub. L. 116–22, § 607(a)(3)(A), substituted “for each of fiscal years 2019 through 2023” for “for fiscal year 2003, and such sums as may be necessary for each of fiscal years 2004 through 2007”.

Subsec. (f)(2). Pub. L. 116–22, § 607(a)(3)(B), substituted “this chapter and other medical and public health preparedness and response laws” for “the Public Health Security and Bioterrorism Preparedness and Response Act of 2002”.

Subsec. (f)(3). Pub. L. 116–22, § 607(a)(3)(C), substituted “2019” for “2004” in heading and “2019,” for “2004,” in text.