    <SEC-DOCUMENT>0001564590-22-015256-index.html : 20220422
    <SEC-HEADER>0001564590-22-015256.hdr.sgml : 20220422
    <ACCEPTANCE-DATETIME>20220422160943
    ACCESSION NUMBER:		0001564590-22-015256
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		5
    FILED AS OF DATE:		20220422
    DATE AS OF CHANGE:		20220422

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			ICF International, Inc.
    		CENTRAL INDEX KEY:			0001362004
    		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MANAGEMENT CONSULTING SERVICES [8742]
    		IRS NUMBER:				223661438
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-33045
    		FILM NUMBER:		22845575

    	BUSINESS ADDRESS:
    		STREET 1:		9300 LEE HIGHWAY
    		CITY:			FAIRFAX
    		STATE:			VA
    		ZIP:			22031
    		BUSINESS PHONE:		(703) 934-3000

    	MAIL ADDRESS:
    		STREET 1:		9300 LEE HIGHWAY
    		CITY:			FAIRFAX
    		STATE:			VA
    		ZIP:			22031
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>icfi-defa14a_20220602.htm
    <DESCRIPTION>DEFA14A
    <TEXT>
    Document 1 - file: icfi-defa14a_20220602.htm

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    <SEQUENCE>2
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    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: gorjonumd5qd000004.jpg

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    <DOCUMENT>
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    <SEQUENCE>3
    <FILENAME>gorjonumd5qd000001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: gorjonumd5qd000001.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>gorjonumd5qd000003.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: gorjonumd5qd000003.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
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    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: gorjonumd5qd000002.jpg

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