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Grading, Certification and Verification
Dairy Grading and Standards Contacts  
Grading and Standards Division
Diane D. Lewis, Director

Grading Branch
Kenneth Vorgert, Chief, Dairy Grading Branch
630-437-5037 (Lisle)

Dairy Grading National Field Office
Mark A. Hilgers, National Field Director

Noreen Ratzlaff, National Program Coordinator, Plant Surveys, Equipment and Facility Reviews

Rocklyn R. Bates, Equipment and Facility Review Specialist

Carrie L. Sayasithsena, National Program Coordinator, All Products, Grade Labels, Resident Programs, Export Certification

Yvette Percell, Program Specialist 202-690-3571

MD McWilliams, Program Specialist 202-720-3171

Standardization Branch
Diane D. Lewis, Director

  Dairy Grading  
  Dairy Standardization  
Additional Information
  Dairy Grading and Standards Washington DC fax 202.720.2643  
  Dairy Grading Lisle IL fax 630-437-5060  
  Last Modified Date: 11/19/2014