

Residue chemistry guidelines monitor the safety of chemical use in human food
and animal feed, and attempt to assess the dietary risks associated with
chemical use. While residue chemistry is a critical element to
chemical
registration, its data includes far more than information on the magnitude of
residues in crop commodities.
TSG’s scientists have years of experience
designing, monitoring, reporting
and defending metabolism, residue,
environmental fate and transport studies
to meet world-wide regulatory requirements. We have expertise in method
choice and
data review for any project that involves chemical measurements,
beginning at the definition phase and continuing through sampling, analysis
and reporting.
Our consultants have broad experience and a varied
perspective in developing residue chemistry data that not only meets
specific guidelines, but directly addresses the regulatory concerns on which
guidelines are based.
We assist in the following:
▲Determining the nature of the residue studies in crops and, if
applicable,
in
livestock
▲Ensuring stability of field-incurred residues during
storage prior to analysis
▲Validating analytical methods with
▲Incurred
radio-labeled residues
▲Determining residues in
▲Water, fish
and irrigated crops
▲Confined and field rotated crops
▲Processed commodities
▲Determining residues resulting from use of
pesticides in food-handling establishments
If necessary, we can
respond to agency concerns regarding the conduct and outcome of required
studies used to support information on the concentration of residues in crop
and livestock commodities.
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| Key Contacts | |
![]() Saadia Eltayeb |
Will Pettit |

TSG’s consultants are highly knowledgeable of the registration requirements for disinfectants regulated by both PMRA and TPD. TSG provides comprehensive product registration services, from determining data obligations and developing compliant labels, to compiling and submitting the registration application.
The goals of EPA's TSCA IUR program are to collect quality screening-level, exposure-related information on chemical substances in commerce in the United States and to make that information available for use by EPA and the public. The IUR data are used to support risk screening, assessment, priority setting and management activities at EPA and constitute the most comprehensive source of basic information on chemicals in commerce available to EPA.
TSG has offices throughout North America and Europe, including Sacramento, CA, Washington, DC, Canada, United Kingdom, Spain and Slovenia. Through these locations and our affiliates, TSG works with companies in 36 countries worldwide including China, Japan, Australia, New Zealand and Latin America.
REACH (Registration, Evaluation, Authorization and restriction of Chemicals) is an EU Regulation that came into effect on June 1st, 2007, imposing strict guidelines on the manufacture or import of chemicals, preparations and articles in or to the EU.
Drinking Water and Toxic Enforcement Act of 1986, better known as Proposition 65, was approved by voters to address the growing concerns about exposure to toxic chemicals. Proposition 65 requires California to publish a list of chemicals, updated at least once a year, known to cause cancer, birth defects or other reproductive harm. Proposition 65 also requires California businesses to post notification about significant amounts of chemicals in the products they sell, in their homes or workplaces, or that are released into the environment.