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By Heather F. Collins, M.S. and Margaret R. Graham

On February 28, 2018, the U.S. Environmental Protection Agency (EPA) announced the availability of three Group B -- Antimicrobial Efficacy Test Guidelines, under Series 810, Product Performance Test Guidelines.  The guidelines provide recommendations for the design and execution of laboratory studies to evaluate the effectiveness of antimicrobial pesticides against public health microbial pests.  83 Fed. Reg. 8666.  The three final guidelines are:

EPA states these “test guidelines are part of a series of test guidelines established by the Office of Chemical Safety and Pollution Prevention (OCSPP) for use in testing pesticides and chemical substances. The test guidelines serve as a compendium of accepted scientific methodologies and protocols for testing that is intended to provide data to inform regulatory decisions.”

EPA issued draft guidelines in June 2015 and solicited comments.  EPA states that some comments received on those draft guidelines have been incorporated into the final versions.  EPA states that the revision “is more user friendly and clarifies topics such as confirmatory data, repeat testing, hard water formulation, wetness determination testing for towelettes, and internal toilet testing … [and] also includes information on supplemental testing policies such as lower certified limits, revision of the AOAC Use Dilution Method performance standards and clarified technical details for efficacy testing.”

Documents pertaining to the revision of the product performance guidelines, including public comment submissions, and the agency’s response to comments are available at www.regulations.gov, in Docket No. EPA-HQ-OPP-2015-0276.  More information on test guidelines is available on our blog.


 

By Lynn L. Bergeson, Oscar Hernandez, Ph.D., Lara A. Hall, MS, RQAP-GLP, and Margaret R. Graham

On December 29, 2016, the U.S. Environmental Protection Agency (EPA) issued a notice regarding the availability of final test guidelines, OCSPP Series 850 Group A -- Ecological Effects, part of a series of test guidelines established by the Office of Chemical Safety and Pollution Prevention (OCSPP) for use in testing pesticides and chemical substances to develop data for submission to EPA under the Federal Food, Drug and Cosmetic Act (FFDCA), the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA), and the Toxic Substances Control Act (TSCA).  The notice states that these test guidelines “serve as a compendium of accepted scientific methodologies and protocols that are intended to provide data to inform regulatory decisions,” and they “provide guidance for conducting the test, and are also used by EPA, the public, and companies that submit data to EPA.”  The test guidelines will be accessible through EPA Docket ID Numbers EPA-HQ-OPPT-2009-0150 through EPAHQ-OPPT-2009-0159, and EPA-HQ-OPPT-2009-0576 on www.regulations.gov.

The changes to test guidelines are varied.  Some of the changes include:

  • Simple cosmetic changes, e.g., presentation of test conditions, test validity criteria, and equations for calculating response measurements;
  • Housekeeping changes, e.g., the addition of final versions of draft guidelines that had not been prepared in final yet;
  • The addition of a limit test option to several acute invertebrate toxicity tests;
  • Changes from “cut off” dosages in existing guidelines to limit concentrations and a change in the limit concentration for industrial chemicals from “1,000 milligrams/liter (mg/L)” to “100 mg/L” for acute toxicity tests and “10 mg/L” for chronic tests; and
  • Changes to terminology, e.g., to clarify 10-day versus acute exposures for sediment-dwelling invertebrate toxicity tests and saltwater versus marine conditions.

The addition of a limit test option aligns well with the new TSCA mandate to reduce vertebrate testing as a matter of federal policy.  EPA notes that certain guidelines were not issued in final, but remain available for reference as draft guidelines.  In that certain ecological effects guidelines relate to guidelines already developed for the Endocrine Disruptor Screening Program (EDSP), EPA notes that it will consider test design elements from the relevant EDSP guidelines in the development of OSCPP 850 series guidelines.


 

By Sheryl L. Dolan and Henry M. Jacoby, M.S.

 

On June 17, 2015, the Environmental Protection Agency (EPA) published a notice announcing the availability for comment of three draft revised 810 series test guidelines developed by the Office of Chemical Safety and Pollution Prevention (OCSPP).  These test guidelines will provide updated guidance on antimicrobial efficacy testing to the regulated community.

 

EPA states that when these guidelines were published in final in 2012, they drew criticism as confusing and inaccurate.  EPA states that the guidelines have been reformatted, corrected and updated to reflect policy and technical changes during the intervening three years.  The draft revised guidelines include expanded upfront summaries and appear more accessible with bolded titles for sections and subsections.  Recent policy and technical changes that are incorporated into the draft revised test guideline include the following:  a requirement that certain product efficacy testing must be conducted at the active ingredient’s (AI) lower certified limit (LCL) concentration; and the updated test methodology for Clostridium difficile (C. diff).  In 2013, EPA specified in separate guidance that specific efficacy testing must be conducted on products with the AI at the LCL concentration.  In 2014, EPA announced the revised C. diff test methodology.  The substance of these two guidance documents is now incorporated into the draft revised test guideline. 

 

EPA is inviting public comment on the three draft revised 810 Series test guidelines, available at the below links:

 

 

Comments must be received on or before August 17, 2015.