The North American Chemical Residue Workshop (NACRW) formerly the Florida Pesticide Residue Workshop (FPRW) conducts an annual meeting for scientists particularly interested in trace level analysis of pesticides, veterinary drug residues, and other chemicals in food, animal feed, and environmental samples.  The purpose of the meeting is to provide training, develop and improve technical knowledge, facilitate development and distribution of new analysis methods and techniques, and establish networking to promote professional cooperation between scientists of these interests.  While the majority of attendees are from North America, important international speakers are always included in the Technical Program, and attendance of scientists from Asia, Europe, South America, Australia, and Africa is increasing annually.

The meeting attracts between 300 to 350 attendees representing government, academia, and industries.  The program is designed for technical scientists and lab managers alike; interactive forums and daily poster and vendor sessions will be held. Poster sessions will be held each morning in the Exhibits area.  Vendor sessions are planned for Sunday Evening and during breakfasts and lunches each day during the event. 

There will be exhibitors representing analytical instrument companies, laboratory and analytical standards suppliers, and analytical service laboratories.

Visit the archives section of the website for information about previous meetings.

Who should attend?

Bench chemists, laboratory managers, quality managers, and anyone else involved in pesticide residue or environmental contaminant residue analyses

Why should they attend?

To gain valuable information on the methodologies and analytical tools used in residue level analyses of pesticides, veterinary drugs and environmental contaminants

To meet others who are doing the very same things, and to establish valuable contacts with many experts

To learn about regulatory issues effecting chemical residue work

To visit vendor exhibits and see the latest in instrumentation 

Tentative 2019 Program

Short Course

Working Groups
Sunday afternoon

Sunday - Wednesday

Vendor Seminars
Sunday - Wednesday

Oral Presentations
Monday, Tuesday, and Wednesday

Monday - Wednesday


  • Information exchange and networking
  • Great location 
  • Door prizes galore 
  • Opening Welcome Reception (Sunday evening)

NACRW Board of directors

Sherry Garris, Chair

Jack Cochran 

JoMarie Cook, Treasurer

Susan Eigen 

Danny LeCompte

Gail Parker

Sherri Turnipseed

Jon Wong

Teri Besse, Executive Director 

The North American Chemical Residue Workshop (NACRW) is sponsored by FLAG Works, Inc., a non-profit corporation, registered in the State of Florida. Its purpose is to facilitate and provide education and training in laboratory analysis of chemical residues and foodborne pathogens, including training in methodology, laboratory standards, and regulatory issues. 

FLAG Works, Inc. is a tax exempted non-profit organization under section 501 (c) (3) of the Internal Revenue Code. Contributions to FLAG Works are tax deductible, and FLAG Works is qualified to receive tax deductible bequests, devises, transfers or gifts.

Please contact Executive Director, Teri Besse, for further information.

Shown in the picture (left to right): Jack Cochran, Sue Eigen, Jo Marie Cook, Sherri Turnipseed, Sherry Garris, Pat Beckett, Teri Besse, and Jon Wong

2018 NACRW Board (Naples Grande Beach Resort)

2018 NACRW Board (Naples Grande Beach Resort)