ICF International, Inc.

The Company has a Code of Ethics that is designed to promote the highest standards of ethical conduct by the Company’s directors, executive officers and employees. The Code of Ethics requires that the Company’s directors, executive officers, and employees avoid conflicts of interest, comply with all laws and other legal requirements, conduct business in an honest and ethical manner, and otherwise act with integrity and in the Company’s best interest. Under the terms of the Code of Ethics, directors, executive officers, and employees are required to report any conduct that they believe in good faith to be an actual or apparent violation of the Code of Ethics. The Code of Ethics is updated from time to time to reflect changes in laws, best practices and the Company’s business.

The Code of Ethics and all Board committee charters are posted in the “Investors—Corporate Governance” portion of our website (www.icf.com). A copy of any of these documents is available in print (free of charge) to any stockholder who requests a copy by writing to: ICF International, Inc., 1902 Reston Metro Plaza, Reston, Virginia, 20190, Attention: Corporate Secretary. The Company will disclose on its website at www.icf.com, to the extent and in the manner permitted by Item 5.05 of Form 8-K, the nature of any amendment to the Code of Ethics (other than technical, administrative, or other non-substantive amendments) and our approval of any material departure from a provision of the Code of Ethics that has been made known to any of our executive officers.