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Defense, Industrials, and Aerospace Section


The Defense, Industrials, and Aerospace Section (DIA) is responsible for civil antitrust enforcement, competition advocacy, and competition policy in the areas of:

  • Defense
  • Avionics and aeronautics
  • Industrial equipment (e.g., rail, plastics, commercial vehicles, etc.)
  • Road and highway construction
  • Metals and mining
  • Waste industries

Jay Owen, Section Chief


Jay Owen
Section Chief

Soyoung Choe
Assistant Chief

Veronica Onyema
Assistant Chief

Photo - Jay Owen

Federal and State Contacts

Defense and Intelligence: DIA reviews its defense industry mergers in conjunction with the Department of Defense and with the applicable military and intelligence branches affected by the proposed transaction or joint venture.

Regional and State Economies: In any review of transactions affecting regional economies, DIA works closely with the relevant state attorneys general. DIA has implemented a screening system for use by the state departments of transportation in their evaluation of the competitive effect of mergers in the highway construction industry.

International Matters: DIA often coordinates with foreign competition authorities in relation to cross-border investigations and to share knowledge about our industries.

Antitrust Division Seal
DIA Contact Information

Mailing address:
Suite 8700, Liberty Square Building
450 Fifth Street, NW
Washington, DC 20530

Phone: 202-307-0924
Fax: 202-514-9033