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  1. Office of Policy, Legislation, and International Affairs

Office of Congressional Appropriations Also referred to as: OCA

Who We Are

OCA manages FDA’s relationship with Congressional Appropriators (members of Congress who fund FDA) and serves as the Agency advisor on appropriations matters in support of FDA’s resource needs and public health mission.

No Money shall be drawn from the Treasury, but in Consequence of Appropriations made by Law; and a regular Statement and Account of the Receipts and Expenditures of all public Money shall be published from time to time.

- U.S. Constitution, Article I, Section 9, Clause 7 - "The Appropriations Clause"

Our Team

With years of experience having served in Congress, across the federal government, and private industry, OCA's team of experienced congressional affairs experts are here to help no matter your need! 

Message the team at: oca-oplia-congressional-government@fda.hhs.gov

         Senior Staff

         Katherine Klimczak, Acting Legislative Director for Appropriations
         Phone: 240.702.3997 Email: Katherine.Klimczak@fda.hhs.gov
         Daniel Hattis, Acting Deputy Legislative Director for Appropriations 
         Phone: 202.465.5946  Email: Daniel.Hattis@fda.hhs.gov  

         Michael A. Nguyen, Team Lead, Human Medical Products & Tobacco
         Phone: 301.512.7357  Email: Michael.Nguyen1@fda.hhs.gov    
         Daniel Hattis, Team Lead, Foods and Veterinary Medicine 
         Phone: 202.465.5946  Email: Daniel.Hattis@fda.hhs.gov  


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