The Environmental Protection Agency (EPA) issued a Data Call-In (DCI) on October 18, 1995 requiring that pesticide manufacturers submit data on the persistence of chemical residue on crop foliage and also on dermal and inhalation exposure to pesticides during reentry into any pesticide-treated agricultural site. The data will be used to estimate exposure to agricultural workers when they enter fields that have been treated with a pesticide, and to calculate the restricted entry intervals that appear on product labeling.
The Agricultural Reentry Task Force, L.L.C., (ARTF) was organized as a "joint data development task force" in which pesticide manufacturers work together to develop a database that meets EPA’s requirements.
This proprietary database of generic agricultural reentry transfer coefficients (TCs) is being used by EPA, California Department of Pesticide Regulation (CDPR), and Canada's Pest Management Regulatory Agency (PMRA) to evaluate member companies' chemicals. The generic TCs in the ARTF database enable regulators and ARTF members to estimate occupational exposure and risk in any scenario where a worker might contact treated foliage. However, ARTF’s exposure studies and TC database may only be used to make regulatory decisions for the members who have sponsored the research.
From the beginning, ARTF has been working very closely with EPA, CDPR, and PMRA in developing this database. The Task Force has a Joint Regulatory Committee where representatives from these groups confer with task force members on the regulatory direction of the project. ARTF’s general plan for conducting an exposure study was approved by EPA, PMRA, and CDPR. ARTF data began to be used in government risk assessments when the database was put on-line in August 2000, and also through the August 7, 2000 EPA policy that provides TCs for risk assessments that are largely based on ARTF work.
The research for this database began with the formation of ARTF in 1995. The last of ARTF's exposure data were submitted prior to the November, 2001 deadline for compliance with EPA's Data Call-In.