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By Lynn L. Bergeson and Carla N. Hutton
 
On September 30, 2019, the U.S. Environmental Protection Agency (EPA) announced the availability of the meeting minutes and final report for the June 18-21, 2019, meeting of the Toxic Substances Control Act (TSCA) Science Advisory Committee on Chemicals (SACC) on the draft risk evaluation for Pigment Violet 29 (PV29).  SACC’s report addresses the scientific issues being considered by EPA regarding the peer review for the draft risk evaluation.  As reported in our November 16, 2018, memorandum, “EPA Publishes First Draft TSCA Chemical Risk Evaluation,” the draft risk evaluation states that EPA considered all reasonably available data for PV29 to make a determination of whether the risk it poses is unreasonable.  EPA “concludes that C.I. Pigment Violet 29 does not present an unreasonable risk of injury to human health or the environment, without considering costs or other non-risk factors, including no unreasonable risk to potentially exposed and susceptible subpopulations identified as relevant, under the conditions of use.”  EPA requested SACC to provide advice and recommendations on questions concerning:

  • The overall content, organization, and presentation of the draft risk evaluation;
  • Systematic review;
  • Physical chemical properties/environmental fate;
  • Exposure and releases;
  • Environmental effects;
  • Human health;
  • Risk characterization/risk determination; and
  • Supplemental analysis.

The report notes that this first SACC peer review is the first time the TSCA program is making non-TSCA confidential business information (CBI) available to peer reviewers.  According to the report, EPA requested comment on the process, integration, and clarity related to the use of the CBI that was provided.  EPA provided SACC members TSCA CBI training, and they were permitted to review the full studies as part of their peer review.  The report states that upon a comparison of the full (unredacted) studies with the redacted studies, SACC reached consensus that the nature of the redactions do not materially impact the draft risk characterization.  SACC agreed that the summary statistics provided in the unredacted version of the reproduction/development study were consistent with the animal data in the redacted version of the study.  SACC made recommendations to EPA about how to process CBI information for use by SACC and the public for future assessments.


 

By Lynn L. Bergeson and Margaret R. Graham, M.S.

On April 17, 2019, the U.S. Environmental Protection Agency (EPA) announced the availability of updated systematic review supplemental files with data evaluation scoring sheets as supporting documents for the draft risk evaluation for Colour Index (C. I.) Pigment Violet 29 (PV29) under the Toxic Substances Control Act (TSCA).  84 Fed. Reg. 16011.  EPA states it is “seeking public comment on the draft risk evaluation for PV29 in light of the additional materials already made or being made publicly available.”  In her April 16, 2019, blog item, Alexandra Dapolito Dunn, Assistant Administrator, EPA Office of Chemical Safety and Pollution Prevention, described the updated systematic review documents for PV29 as “a tool that guides our review and selection of scientific studies used to evaluate chemicals,” and that the updates were made “based on public input we received during the initial comment period.” 

On March 22, 2019, EPA made 24 full study reports on PV29 available to the public, in some instances with information withheld as confidential business information (CBI) pursuant to EPA regulations.  EPA has considered these materials in the risk evaluation process of PV29 and has also submitted these materials to the TSCA Science Advisory Committee on Chemicals (SACC).  EPA states that comments submitted will be considered by the agency and also provided to the TSCA SACC peer review panel, which will have the opportunity to consider the comments during its discussions. 

The comment period for the draft risk evaluation of CI PV29 closed on January 14, 2019, but via this notice is being extended.  The Federal Register notice announcing the availability of the updated systematic review supplemental files lists a comment deadline of the same date as the notice -- April 17, 2019, but Docket ID EPA-HQ-OPPT-2018-0604-0038, however, lists a comment deadline of May 17, 2019; it is most likely that the docket is correct in this instance especially considering that follows what was stated by Ms. Dunn in her blog item that in light of the new and updated information EPA has recently released, "we will be reopening the public comment on the draft risk evaluation for PV29. It is important that the public have the opportunity to provide input on all of the information EPA is considering before our risk evaluation is finalized, so we invite you to provide us with your feedback. The public comment period will reopen for 30 days following publication in the Federal Register.” 


 

By Lynn L. Bergeson and Margaret R. Graham, M.S.

On March 22, 2019, the U.S. Environment Protection Agency (EPA) issued a memorandum stating that it was releasing 24 studies in the Colour Index (C.I.) Pigment Violet (PV) 29 docket (Docket No. EPA-HQ-OPPT-2018-0604) that were reviewed by EPA to develop its Draft Risk Evaluation for C.I. PV 29.  EPA states that these studies are being made available to the public prior to the Toxic Substances Control Act (TSCA) Science Advisory Committee on Chemicals (SACC) expert panel peer review of the draft risk evaluation.  That entirety of the reports was originally erroneously claimed to be confidential business information (CBI), therefore, the reports were not included in the public docket previously.   Fifteen of the study reports have been released without any redactions while nine reports were partially redacted.  EPA provides a full list of the studies and their confidential status in the memorandum.  The 24 study reports represent the following disciplines:  #1-17 Human Health; #18-20 Environmental Hazard; #21-22 Environmental Fate, and #23-24 Physical Chemical properties.  Twenty of the 29 studies made available in the dockets were summarized in the European Chemicals Agency’s (ECHA) registration dossier for C.I. PV 29; EPA refers to them as “robust summaries” and states that it has compared the information contained in the robust summaries against the information contained in the study reports for accuracy.  They were posted to the docket in November 2018. 


 

By Lynn L. Bergeson and Margaret R. Graham

On December 31, 2018, the U.S. Environmental Protection Agency (EPA), even though they had already shut down due to funding issues, announced that if the government shutdown continues through 5:00 p.m. (EST) January 4, 2019, the Toxic Substances Control Act (TSCA) Science Advisory Committee on Chemicals’ (SACC) January 8, 2019, Preparatory Virtual Meeting for the January 29 through February 1, 2019, meeting on Colour Index (C.I.) Pigment Violet 29 will be cancelled, and discussion of charge questions will be folded into the face-to-face meeting scheduled for January 29 through February 1, 2019.  Further, if the shutdown continues through 5:00 p.m. (EST) January 11, 2019, the TSCA SACC’s January 29 through February 1, 2019, Peer Review of the draft risk evaluation for C.I. Pigment Violet 29 will be postponed.  More information on the draft risk evaluation of C.I. Pigment Violet 29 is available in our memorandum EPA Publishes First Draft TSCA Chemical Risk Evaluation.


 

By Lynn L. Bergeson and Margaret R. Graham

On November 29, 2019, the U.S. Environmental Protection Agency (EPA) announced that it has scheduled the first public meetings of the Toxic Substances Control Act (TSCA) Science Advisory Committee on Chemicals (SACC).  The first meeting, a preparatory virtual meeting, and will be held on January 8, 2019, from 2:00 p.m. to 4:00 p.m. (EST).  The second meeting, a four-day in-person meeting, will be held on January 29, 2019, from 1:00 p.m. (EST) to 5:30 p.m. and on January 30, 31, and February 1, 2019, from 9 a.m. to 5:30 p.m. (EST).  The official announcement is scheduled to be published in the Federal Register on November 30, 2018.  Further information, including the location of the in-person meeting and how to register, will be posted on EPA’s TSCA Scientific Peer Review Committees website.

The topic for this first series of meetings is the peer review of the draft risk evaluation for Colour Index (C.I.) Pigment Violet 29 and associated documents developed under EPA’s existing chemical substance process under TSCA.  EPA states that the two-hour preparatory virtual meeting on January 8, 2019, will consider the scope and clarity of the draft charge questions for this peer review -- included with EPA’s Transmission of Background Materials and Charge to the Panel for the TSCA SACC Reviewing the Draft Risk Evaluation for C.I. Pigment Violet 29 (Attachment 23).  The 4-day, in-person, public meeting will be comprised of the peer review panel deliberations and a general TSCA orientation for the TSCA SACC.  A portion of the in-person meeting will be closed to the public, however, for the discussion of information claimed as confidential business information (CBI).

During these upcoming meetings, EPA states that the public is invited to provide oral comments for the peer review on the draft risk evaluation for C.I. Pigment Violet 29 and related documents; comments submitted by January 14, 2019, on the draft risk evaluation will be provided to the peer review panel members before the in-person meeting.  Comments on the draft charge questions will be accepted prior to and during the 2-hour preparatory virtual meeting (but preferably by January 7, 2019); the TSCA SACC peer review panel will consider these comments during their discussions. 

More information on the draft risk evaluation for C.I. Pigment Violet 29 is available in our memorandum EPA Publishes First Draft TSCA Chemical Risk Evaluation.


 

By Lynn L. Bergeson, Charles M. Auer, Oscar Hernandez, Ph.D., and Carla N. Hutton

The U.S. Environmental Protection Agency (EPA) published a Federal Register notice on November 15, 2018, announcing the availability of and seeking public comment on the first draft chemical risk evaluation under the Toxic Substances Control Act (TSCA), as amended by the Frank R. Lautenberg Chemical Safety for the 21st Century Act (Lautenberg).  The draft risk evaluation for Colour Index (C.I.) Pigment Violet 29 is intended to determine whether C.I. Pigment Violet 29 presents an unreasonable risk to health or the environment under the conditions of use, including an unreasonable risk to a relevant potentially exposed or susceptible subpopulation.  According to the notice, EPA is also submitting these same documents to the TSCA Science Advisory Committee on Chemicals (SACC) to peer review the draft risk evaluation.  EPA intends to publish a separate Federal Register notice containing the peer review meeting details.  Comments on the draft risk evaluation are due January 14, 2019.  EPA will provide all comments submitted on the draft risk evaluation to the TSCA SACC peer review panel, which will have the opportunity to consider the comments during its discussions.  More information is available in the full memorandum.