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Staff and Technical Experts Directory

OWM Organization Chart (PDF)

 Type of Information

Contact

Telephone
Area Code (301)

Weights & Measures

Dr. Douglas Olson, Chief 975-4004
Administrative Staff:      
Office Manager and General Inquiries Mrs. Barbara Cohn 975-4004

Training Coordinator, OWM Webmaster, and OWM Contacts System Administrator

Ms. Yvonne Branden 975-3272
Document and Publications Manager Ms. Lisa Warfield 975-3308

Technical Areas

Administration
History
U.S. System
Mr. Ken Butcher 975-4859
Mrs. Tina Butcher 975-2196

Laws & Regulations

Packaging and Labeling
Precious Metals Conversion
Price Verification
Retail and Unit Pricing Laws
Net Quantity of Contents
Mr. Ken Butcher 975-4859
Mr. David Sefcik 975-4868
Ms. Lisa Warfield 975-3308
Engine Fuel Quality & Biofuels Ms. Lisa Warfield 975-3308
Metric Information Mrs. Elizabeth Benham 975-3690
Mr. Ken Butcher 975-4859
OIML Packaging and Labeling (R79 & R87) Mr. Ken Butcher 975-4859
Ms. Lisa Warfield 975-3308

International Legal Metrology Program

International Legal Metrology (OIML) Dr. Chuck Ehrlich 975-4834
Mr. Ralph Richter 975-3997
Dr. Katya Delak 975-2520

Publications

NIST Handbook 105 Series, Specifications & Tolerances for Field Standards Dr. Micheal Hicks 975-4615
NIST Handbook 44, Specifications, Tolerances and Other Technical Requirements for Weighing and Measuring Devices Mr. John Barton 975-4002
Mrs. Tina Butcher 975-2196
Ms. Diane Lee 975-4405
Mrs. Juana Williams 975-3989
NIST Handbook 130, Uniform Laws and Regulations in the Areas of Legal Metrology and Fuel Quality
 
Mr. David Sefcik 975-4868
Ms. Lisa Warfield 975-3308
NIST Handbook 133, Checking the Net Contents of Packaged Goods Mr. David Sefcik 975-4868
Ms. Lisa Warfield 975-3308

Measuring Systems

Metering Devices - General & Other Mrs. Tina Butcher 975-2196
Ms. Diane Lee 975-4405
Mrs. Juana Williams 975-3989
Electric Vehicle Refueling Mrs. Tina Butcher 975-2196
Mrs. Juana Williams 975-3989
Electric Watthour Type Electric Meters Mrs. Tina Butcher 975-2196
Ms. Lisa Warfield 975-3308
Cryogenic Measuring Devices Mrs. Juana Williams 975-3989
Gas Pumps (Retail Motor Fuel Dispensers) Mrs. Tina Butcher 975-2196
Ms. Diane Lee 975-4405
Mrs. Juana Williams 975-3989
Hydrogen & Compressed Gases Mrs. Juana Williams 975-3989
Liquefied Petroleum Gas (LPG) Meters Mrs. Tina Butcher 975-2196
Loading-Rack Meters Mrs. Tina Butcher 975-2196
Ms. Diane Lee 975-4405
Mrs. Juana Williams 975-3989
Mass Flow Meters Mrs. Tina Butcher 975-2196
Ms. Diane Lee 975-4405
Mrs. Juana Williams 975-3989
Master Meters Mr. Val Miller 975-4004

Small Volume Provers

General Field Use Ms. Diane Lee 975-4405
Calibration, Witnessing Mr. Val Miller 975-4004
Vehicle-Tank Meters Mrs. Tina Butcher 975-2196
Ms. Diane Lee 975-4405
Mrs. Juana Williams 975-3989

Weighing Systems

Weighing Devices - General Mr. John Barton 975-4002
Automatic Weighing Systems & OIML R51 Mr. Ken Butcher 975-4859
Belt-Conveyer Scales & OIML R50 Mr. John Barton 975-4002
Hopper Scales, Auto Bulk Weighing Mr. John Barton 975-4002
In-Motion Weighing-General Mr. John Barton 975-4002
OIML R134 (In-Motion Vehicle Weighing) Mr. John Barton 975-4002
Non-Automatic Weighing Instruments - OIML R76 Dr. Chuck Ehrlich 975-4834
Railway Track Scales & OIML R106 Mr. John Barton 975-4002
Uncertainties - Balances and Scales Dr. Micheal Hicks 975-4615

Other Device-Related Topics

Grain Moisture & Protein Analyzers & OIML R59 and OIML R146 Ms. Diane Lee 975-4405
Livestock Carcass Measuring Systems Ms. Diane Lee 975-4405
Multiple Dimension Measuring Devices Mr. John Barton 975-4002
Taximeters, Transportation Network Measuring Systems, and Odometers & OIML R21 Mr. John Barton 975-4002

Laboratory Metrology

Laboratory Technical Assistance - General Mrs. Isabel Chavez-Baucom 975-2128
Dr. Micheal Hicks 975-4615
Calibration Procedures Dr. Micheal Hicks 975-4615
Measurement Traceability Dr. Micheal Hicks 975-4615
Proficiency Testing Dr. Micheal Hicks 975-4615
Quality Management Systems Mrs. Isabel Chavez-Baucom 975-2128
State Lab Program & Recognition Mrs. Isabel Chavez-Baucom 975-2128
Dr. Micheal Hicks 975-4615
Uncertainties Dr. Micheal Hicks 975-4615

Training

Prepackaged Commodities, Price Verification, Package Labeling, and Laws & Regulations Training Mr. David Sefcik 975-4868
Laboratory Metrology Training Mrs. Isabel Chavez-Baucom 975-2128
Weighing, Measuring, and Other Devices Training Mrs. Tina Butcher 975-2196

National Conference on Weights & Measures (NCWM) Committees*

Executive Secretary Dr. Douglas Olson 975-2956
Laws & Regulations Committee Ms. Lisa Warfield 975-3308
Professional Development Committee Mrs. Tina Butcher 975-2196
Specifications & Tolerances Committee Mr. John Barton 975-4002
Ms. Diane Lee 975-4405

NCWM National Type Evaluation Program (NTEP) Sectors

NTEP Software Sector Dr. Katya Delak 975-2520
NTEP Grain Analyzers Sector Ms. Diane Lee 975-4405
NTEP Measuring Sector Mrs. Tina Butcher 975-2196
NTEP Belt Conveyer Sector Mr. John Barton 975-4002
NTEP Weighing Sector Mr. John Barton 975-4002
Created May 18, 2011, Updated March 31, 2021