Catherine R. Nielsen

Catherine R. Nielsen: Attorney with Keller and Heckman LLP
Attorney Awards


Catherine Nielsen, a partner in the firm’s Food and Drug practice, specializes in counseling domestic and foreign corporations on the regulatory status of food additives and food-contact materials before the U.S. Food and Drug Administration.

She advises clients on the regulatory compliance of food-contact substances in Canada, Europe, Central and South America, and the Pacific Rim. She works with companies to obtain explicit regulatory listings of packaging components (polymer components, additives, printing inks, adhesives, polymer production aids), other food additives, and color additives in various jurisdictions, including in the U.S., MERCOSUR, and the European Union.

Ms. Nielsen also assists companies in assessing potential adulteration issues and advising on potential recalls. She advises companies on compliance with California Proposition 65 and Coalition on Northeastern Governors “Toxics in Packaging” legislation, and other state legislation dealing with toxic substance exposure issues.


•Oct 26, 2016 Catherine Nielsen Will Present Food Packaging: EU versus US Regulatory Comparison
•Sep 04, 2013 Catherine Nielsen to Speak at the Tag and Label Manufacturers Institute Tech 2013 Meeting


•Jan 09, 2019 Update: Food Packaging Regulations in Latin America
•Jun 15, 2017 Food Packaging Regulations in Australia and New Zealand
•Mar 07, 2017 The Regulation of Printing Inks in the European Union
•Aug 17, 2016 FDA Issues Final GRAS Rule; Formally Adopts Voluntary Notification Process
•Nov 20, 2014 Catherine Nielsen Authors Article on Food Packaging in Canada
•Oct 08, 2013 Special Report on Food Packaging Regulations in the Pacific Rim
•Apr 14, 2011 Packaging Law Alert: China Publishes Procedure for Clearing New Food-Contact Substances

Areas of Practice (5)

  • California's Proposition 65
  • Food & Drug
  • Health and Safety Compliance Audit
  • International Regulatory Affairs
  • Trade and Professional Associations

Education & Credentials

Contact Information:
202.434.4140  Phone
202.434.4646  Fax
University Attended:
University of Alabama, B.A., summa cum laude, 1984
Law School Attended:
University of Virginia, J.D., 1987
Year of First Admission:
1989, District of Columbia; 1987, Virginia


•American Bar Association


Peer Reviews

A Martindale-Hubbell Peer Rating reflects a combination of achieving a Very High General Ethical Standards rating and a Legal Ability numerical rating.

*Peer Reviews provided before April 15, 2008 are not displayed.

Documents (3)

Documents by this lawyer on

Washington, District of Columbia

Contact Catherine R. Nielsen

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