By Richard E. Engler, Ph.D., Lynn L. Bergeson, Kathleen M. Roberts, and Lauren M. Graham, Ph.D.
On December 6, 2017, the U.S. Environmental Protection Agency’s (EPA) Office of Pollution Prevention and Toxics (OPPT) convened a much anticipated public meeting on implementing changes to the new chemicals review program under the amended Toxic Substances Control Act (TSCA). EPA offered brief prepared remarks and previously solicited questions from stakeholders. Stakeholders expressed their appreciation to EPA for developing the draft Points to Consider and related documents made available in advance of the meeting, and for OPPT’s continuing interest on new chemical issues. For more information, see our blog “EPA Posts Agenda and Other Meeting Materials for December 6, 2017, New Chemicals Review Program Implementation Meeting.” Below are some key takeaways regarding the meeting as related to EPA’s presentations and input from industry and non-governmental organizations (NGO).
Conditions of Use, SNURs, and PMNs: EPA stated that one of its main concerns is when EPA does not identify unreasonable risk for intended use, but nonetheless has concerns with reasonably foreseen conditions of use. EPA stated that it will assess whether those concerns can be addressed through significant new use rules (SNUR) that it would promulgate prior to making its Section 5 finding. EPA stated that, in identifying reasonably foreseeable uses, it will rely on knowledge, experience, and facts to support what is foreseen, not simply what is possible. Several commenters requested clarification and examples on the information that will support such identifications. This is plainly an area of intense interest and on which EPA pledged to clarify.
EPA confirmed that the SNUR would mirror the premanufacture notice (PMN) in a way that would clearly state what deviations would be permitted to ensure protections for portions of the PMN about which EPA had identified concerns. In response to a direct question, Jeff Morris, Ph.D., OPPT Director, confirmed that he personally is looking at each new chemical notification decision to ensure a consistent and coherent approach to chemical reviews. Dr. Morris assured stakeholders that his engagement would not slow down the PMN review process.
NGO groups, that were ably represented at the meeting, expressed disappointment that they were not a part of the pilot testing component of the new chemicals Points to Consider document. OPPT clarified that the purpose of the pilot was to have parties who are actually preparing PMNs pilot use of the document while preparing PMNs and that as a result, non-PMN submitters were not a part of the pilot. Following a request from several NGOs, EPA stated that it would of course make the original and redline versions of the Points to Consider document publicly available to ensure full transparency. Several NGOs also voiced concern with the delay of EPA getting PMN information posted online. Commenters noted the need for access to more content related to the new chemicals review, such as detailed PMN determinations, as the determinations that are publicly available at this point are boilerplate. Interestingly, concerns were expressed on issues not germane to the workshop, such as existing and accidental releases of chemicals (not related to TSCA).
Of the parties that weighed in on the issue, industry representatives who addressed the issue were supportive of using SNURs to cover reasonably foreseeable conditions of use that are not reflected in the submitted PMNs. Some NGOs were supportive of the use of SNURs to reduce consent orders, while others stated that SNURs are not an adequate substitute for consent orders and that Congress intended for Section 5(e) orders to come first and to trigger SNURs. The concern over the use of SNURs rather than consent orders may relate to a concern of chemicals being introduced prior to the SNUR being published in final. Industry representatives also suggested that EPA seek to scale its information needs appropriately. For instance, less detailed exposure information should be required for EPA to determine that it has sufficient information on a low hazard chemical. Similarly, EPA should adjust the hazard profile requirements for a chemical with low exposure.
Chemical Categories: EPA reviewed the ongoing effort to develop four new chemical categories that could be used in future new chemical reviews. These are:
- Lung Effects Categories: Polycationic substances (cationic binding); general surfactants; waterproofing agents; and insoluble polymer lung overload;
- Photo-Acid Generators (PAG) Category;
- Tracer Chemical; and
- Perfluorinated Chemicals.
EPA asked for input and ideas on how to move forward with chemical categories -- either by updating existing categories or reviewing internal data to identify new categories -- and how the information should be presented (e.g., to publish separately or together in one document).
OSHA Focus: On behalf of the TSCA New Chemicals Coalition (TSCA NCC), Richard E. Engler, Ph.D., Bergeson & Campbell, P.C., provided comments that included feedback to EPA that it needs to develop a consultation process with the U.S. Occupational Safety and Health Administration (OSHA) per the Section 5(f) legislative language. Dr. Engler suggested that EPA’s assessments could be communicated to submitters and OSHA to inform both on the endpoints of concern and EPA’s assessments of safe exposure limits. In this way, employers are obligated under the Occupational Safety and Health Act to assess hazards and exposures, provide information to workers, and ensure that exposures are controlled under OSHA’s authority, thereby satisfying EPA’s obligation to regulate “to the extent necessary” to protect such workers.
Sustainable Futures Program: EPA asked for input as to whether it should continue the Sustainable Futures Program. Some commenters supported the Sustainable Futures Program; no commenters spoke against it.
The presentations from the meeting are listed below and available online:
- New Chemical Review under Amended TSCA -- Jeff Morris, Ph.D., Office of Pollution Prevention and Toxics
- Points to Consider (PtC) When Preparing TSCA New Chemical Notifications -- David A. Tobias, Ph.D., Risk Assessment Division, Office of Pollution Prevention and Toxics
- New Chemicals Decision Guidelines Manual Detailed Outline
- Chemical Categories -- Tala R. Henry, Ph.D., Director, Risk Assessment Division, Office of Pollution Prevention and Toxics
- Other Advance Questions -- Tanya Hodge Mottley, Acting Deputy Director of Programs, Office of Pollution Prevention and Toxics
EPA’s next public meeting on TSCA’s implementation of Existing Chemicals Prioritization is coming up on December 11, 2017. More information on this upcoming meeting is available on our blog under key phrase public meeting.
By Lynn L. Bergeson and Margaret R. Graham
On November 9, 2017, the U.S. Environmental Protection Agency (EPA) released the agenda and meeting materials for its December 6, 2017, New Chemicals Review Program Implementation meeting. NOTE WELL: This is a critically important meeting for companies that innovate in the chemical space and are now preparing Toxic Substance Control Act (TSCA) Premanufacture Notifications (PMN) or will in the future. EPA states that this meeting will update and engage with the public on EPA’s progress in implementing changes to the New Chemicals Review Program as a result of the 2016 amendments to TSCA, and will include a discussion of EPA’s draft New Chemicals Decision-Making Framework. The meeting materials include:
- Agenda for Public Meeting. The Agenda includes the following topics: the decision-making framework; TSCA orders and Significant New Use Rules (SNUR) in the context of new chemicals review; the Points to Consider document as well as the pilot results and other questions; the decision guidelines manual; chemical categories; sustainable futures; a discussion of questions submitted in advance; and two public comment periods. Featured speakers are Nancy Beck, Ph.D., Deputy Assistant Administrator for the Office of Chemical Safety and Pollution Prevention (OSCPP) and Jeff Morris, Ph.D., Director of the Office of Pollution Prevention and Toxics (OPPT).
- New Chemicals Decision-Making Framework: Working Approach to Making Determinations under Section 5 of TSCA. EPA states that this document includes EPA’s general decision framework for new chemicals and a breakdown of how EPA intends to approach each of the five types of new-chemical determinations required.
- Points to Consider When Preparing TSCA New Chemical Notifications (Draft). This draft document, dated November 6, 2017, provides concise information to assist submitters in preparing a PMN, Significant New Use Notice (SNUN), or exemption notice (e.g., Low Volume Exemption or LVE) that (1) meets the requirements of TSCA Section 5 and applicable regulations; and (2) facilitates EPA’s review of Section 5 notices by ensuring that the information received accurately and completely reflects the intended manufacture, processing, distribution in commerce, use, and disposal of the new chemical substances subject to the Section 5 notice. EPA states this is a draft published for comment, but does not specify a deadline for submitting comments.
- Overview of Comments Received on the Draft "Points to Consider" Document. This document summarizes 151 comments received on the draft Points to Consider document. It organizes them by topic. The topics addressed are aquatic haz/tox; chemistry; data; engineering; environmental release and disposal information; fate; a general category; human health haz/tox; regulatory; release to water; standard review; uses; risk; exposure; and prenotice meetings. These comments have not been posted in the docket for this meeting.
- New Chemicals Decision Guidelines Manual – Detailed Outline. EPA states that this manual will summarize how EPA reviews new chemical submissions and the policies and decision guidelines used in making decisions under TSCA Section 5. It will provide an overview of both risk assessment and risk management approaches. Further, it is intended to help stakeholders determine what forms of regulation and restrictions on the manufacture, distribution, use, and/or disposal of a new chemical substance may arise from an EPA determination.
More information on the subsequent Approaches for Identifying Potential Candidates for Prioritization for Existing Chemical Risk Evaluations meeting on December 11, 2017, is available in our blog item EPA Schedules Two Meetings to Discuss TSCA Implementation Activities, Requests Comments.
By Lynn L. Bergeson and Margaret R. Graham
On November 6, 2017, the U.S. Environmental Protection Agency (EPA) is scheduled to publish a notice in the Federal Register in which it will announce two meetings to discuss implementation activities under the Toxic Substances Control Act (TSCA) as amended by the Frank R. Lautenberg Chemical Safety for the 20th Century Act, as well as request public comments. The meetings are:
- New Chemicals Review Program Implementation Meeting: December 6, 2017, from 9:00 a.m. to 5:00 p.m. (EST). EPA’s first meeting will update and engage with the public on EPA’s progress in implementing changes to the New Chemicals Review Program as a result of the 2016 amendments to TSCA, and will include a discussion of EPA’s draft New Chemicals Decision-Making Framework. EPA will describe its review process for new chemical substances under the amended statute and interested parties will have the opportunity to provide input and to ask questions. EPA states it plans to utilize the feedback it receives from the public meeting and comments received to improve policy and processes relating to the review of new chemicals under TSCA. EPA will be accepting questions from the public in advance of the meeting, and will respond to these questions at the meeting as time allows, if such questions are received by November 20, 2017. Questions and comments can be submitted in Docket No. EPA-HQ-OPPT-2017-0585 on www.regulations.gov. Registration for this meeting is available online.
- Approaches for Identifying Potential Candidates for Prioritization for Existing Chemical Risk Evaluations Meeting: December 11, 2017, from 9:00 a.m. to 5:00 p.m. (EST). EPA’s second meeting will focus on possible approaches for identifying potential candidate chemical substances for EPA’s prioritization process under TSCA. As amended, TSCA required that EPA establish processes for prioritizing and evaluating risks from existing chemical substances. EPA will describe and take comment on a number of possible approaches that could guide it in the identification of potential candidate chemical substances. EPA will be accepting questions from the public in advance of the meeting, and will respond to these questions at the meeting as time allows, if such questions are received by November 20, 2017. Questions and comments can be submitted in Docket No. EPA-HQ-OPPT-2017-0586 on www.regulations.gov. Registration for this meeting is available online.
Online requests to participate in either meeting must be received on or before December 5, 2017. Both meetings will be held at the Ronald Reagan Building and International Trade Center, Horizon Ballroom, 1300 Pennsylvania Avenue, N.W., in Washington, D.C., and will be available by remote access for registered participants. EPA states that more information on the specifics of the meetings will be made available in the dockets and on EPA’s website prior to the meeting.
By Lynn L. Bergeson and Carla N. Hutton
On September 6, 2017, at 10:00 a.m. (EDT), the House Science, Space, and Technology Subcommittees on Environment and on Oversight will hold a joint hearing on “Examining the Scientific and Operational Integrity of EPA’s IRIS Program.” The following witnesses are scheduled to testify:
- Dr. Kenneth Mundt, Principal, Ramboll Environ;
- Dr. James Bus, Senior Managing Scientist, Exponent; and
- Dr. Thomas Burke, former Deputy Assistant Administrator of the U.S. Environmental Protection Agency’s (EPA) Office of Research and Development (ORD) and EPA’s Science Advisor under former President Obama; Johns Hopkins University.
President Trump’s proposed budget request for fiscal year 2018 would have eliminated EPA’s Integrated Risk Information System (IRIS) Program, although the IRIS Program is included in the final budget request. The EPA Science Advisory Board’s (SAB) August 29-30, 2017, meeting included an update from ORD’s National Center for Environmental Assessment on the IRIS Program. According to the presentation, IRIS is working to increase transparency and full implementation of systematic review; modernize the IRIS Program; modularize product lines; and enhance accessibility. Other IRIS improvements include implementing “next generation IRIS” and improved management practices. During the meeting, the SAB agreed to send a letter to EPA Administrator Scott Pruitt in support of the IRIS Program.
By Lynn L. Bergeson
On August 14, 2017, Bergeson & Campbell, P.C. (B&C®) announced it would be forming a Toxic Substances Control Act (TSCA) New Chemicals Coalition. That the U.S. Environmental Protection Agency (EPA) is now required to make a determination on all new chemicals (or significant new uses of existing chemicals) is at the heart of the changes in EPA’s review of new chemicals, and the new policies and practices that have emerged since June of 2016. What is less clear is how EPA is making these determinations. The coalition’s mission is to prepare meaningful comments and offer constructive, helpful, and informed improvements to the new chemicals review process.
Joining the coalition is easy. We are asking for a flat fee of $1,000 per company for a 12 month period. We are not currently allowing trade associations to join. The chemical community has participated in ad hoc coalitions for years, so the drill is familiar. Dues will be used to:
- Convene meetings and calls;
- Develop advocacy positions on crucial issues to be decided and prioritized, including preparing for EPA’s Fall 2017 release of documents on how it reviews new chemicals; and
- Provide informed and effective comment on these issues and meet with EPA leadership to advocate for the Coalition’s views on these issues.
More information is available in our memorandum Bergeson & Campbell, P.C. Forms “TSCA New Chemicals Coalition.”
By Lynn L. Bergeson and Margaret R. Graham
On August 7, 2017, the U.S. Environmental Protection Agency (EPA) issued a press release stating that it has eliminated the new chemical backlog of over 600 chemicals: “[t]he current caseload is back at the baseline and now in line with the typical active workload.” The press release also announces improvements to new chemical safety reviews, which include operating principles, improvement of EPA’s Toxic Substances Control Act (TSCA) new chemicals program, and further transparency, as detailed below.
EPA states it is committing to the following operating principles in its review of new chemicals:
- Where the intended uses in premanufacture notices (PMN) or other TSCA Section 5 notices (such as low volume exemption (LVE) requests) raise risk concerns, EPA will work with submitters, and, if the submitters submit timely amended PMNs addressing those concerns, EPA will generally make determinations based on those amended submissions.
- Where EPA has concerns with reasonably foreseen uses, but not with the intended uses as described in a PMN or LVE application, as a general matter, those concerns can be addressed through significant new use rules.
- As described in the risk evaluation rule released on June 22, 2017, identification of reasonably foreseen conditions of use will be fact-specific. It is reasonable to foresee a condition of use, for example, where facts suggest the activity is not only possible, but, over time under proper conditions, probable.
- The purpose of testing in a Section 5 order is to reduce uncertainty in regard to risk. Specifically, it is to address risk concerns that gave rise to a finding of “may present unreasonable risk” or another Section 5 finding other than “not likely to present unreasonable risk.” In addition, consistent with the statute, any request for testing by EPA will be structured to reduce and replace animal testing as appropriate.
EPA states it will continue to improve of its TSCA new chemicals program in the following ways:
- Redeploying staff to increase the number of Full-Time Equivalent (FTE) staff working on new chemicals;
- Initiating a LEAN exercise (via EPA’s new time-saving and cost-effective tools) to streamline work processes around new chemicals review; and
- Institutionalizing a voluntary pre-submission consultation process so that submitters have a clear understanding of what information will be most useful for EPA’s review of their new chemical submission, and of what they can expect from EPA during the review process. While such engagement prior to submission is an additional up-front time and resource commitment by submitters and EPA, it should more than pay for itself with faster, better-informed EPA reviews.
EPA states it needs to be more transparent in how it makes decisions on new chemicals under TSCA, and will be instituting the following to implement that goal:
- In Fall 2017, EPA’s Office of Pollution Prevention and Toxics (OPPT) intends to release, for public comment and stakeholder engagement, draft documents that will provide the public with more certainty and clarity regarding how EPA makes new chemical determinations and what external information will help facilitate these determinations;
- EPA will facilitate a public dialogue on its goal of continued improvement in the new chemicals review program; and
- EPA will continue posting weekly web updates of program statistics, so that manufacturers and the public can determine the disposition of cases as quickly as possible.
By Lynn L. Bergeson, Richard E. Engler, Ph.D., and Margaret R. Graham
On April 25, 2017, the U.S. Environmental Protection Agency (EPA) issued two notices in the Federal Register expressing its determination that 28 new chemical notifications are “not likely to present an unreasonable risk of injury to health or the environment.” 82 Fed Reg. 19044 (Statement of Findings for December 2016); 82 Fed. Reg. 19046 (Statements of Findings for February 2017). The statements of findings list premanufacture notices (PMN) and microbial commercial activity notices (MCAN) regarding new polymer and biodegradable chemicals submitted to EPA under Section 5 of the Toxic Substances Control Act (TSCA). The notices listed in the December 2016 statement of findings are:
- EPA Case Number (MCAN): J-16-0033: Chemical identity: Saccharomyces cerevisiae modified to express glucoamylase activity (generic name);
- EPA Case Number (MCAN): J-16-0034: Chemical identity: Saccharomyces cerevisiae modified (generic name);
- EPA Case Number (MCAN): J-16-0035: Chemical identity: Saccharomyces cerevisiae modified (generic name);
- EPA Case Numbers (MCANs): J-16-0036 to J-16-0041: Chemical identity: Biofuel producing modified microorganism(s), with chromosomally-borne modifications (generic name);
- EPA Case Number (PMN): P-17-0009: Chemical identity: Depolymerized waste plastics (generic name);
- EPA Case Numbers (PMNs): P-17-0016, P-17-0017, P-17-0019, and P-17-0020: Chemical identity: Hydroxyl alkyl acrylate ester, polymer with acrylates, aromatic vinyl monomer, cycloaliphatic lactone, and alkyl carboxylic acid, peroxide initiated (generic name); and
- EPA Case Numbers (PMNs): P-17-0018 and P-17-0021: Chemical identity: Hydroxyl alkyl acrylate ester, polymer with acrylates, aromatic vinyl monomer, cycloaliphatic lactone, and alkyl carboxylic acid, Azobis [aliphatic nitrile] initiated (generic name).
The notices listed in the February 2017 statement of findings are:
- EPA Case Numbers (MCANs): J-17-0001 to J-17-0005: Chemical identity: Saccharomyces cerevisiae modified (generic name);
- EPA Case Number (MCAN): J-17-0006: Chemical identity: Saccharomyces cerevisiae modified (generic name);
- EPA Case Number (PMN): P-17-0144: Chemical identity: Amines, C36- alkylenedi-, polymers with octahydro- 4,7-methano-1H-indenedimethanamine and pyromellitic dianhydride, maleated (CASRN: 2020378-57-6);
- EPA Case Number (PMN): P-17-0158: Chemical identity: Perylene bisimide (generic name);
- EPA Case Number (PMN): P-17-0160: Chemical identity: 2-Propenoic acid, alkyl-, alkyl ester, polymer with alkyl 2- propenoate, dialkyloxoalkyl-2- propenamide and alkyl 2-propenoate (generic name);
- EPA Case Number (PMN): P-17-0161: Chemical identity: 2-Propenoic acid, alkyl-, alkyl ester, polymer with alkyl 2- propenoate, dialkyloxoalkyl-2- propenamide, ethenylbenzene and alkyl 2-propenoate (generic name);
- EPA Case Number (PMN): P-17-0182: Chemical identity: Alkyldioic acid, polymer with 2,2-dimethyl-1,3- propanediol, heteropolycyclic carboxy acid anhydride and 1,3-propanediol (generic name); and
- EPA Case Number (PMN): P-17-0185: Chemical identity: Fatty acids, C18- unsatd., dimers, hydrogenated, polymers with C18-unsatd. fatty acid trimers, alkylenediamine and hydroxyalkanoic acid (generic name).
The publication of these two notices fulfills EPA’s obligation under TSCA Section 5(g) to publish its findings; all of these determinations had previously been posted to the EPA website. It is to EPA’s credit that EPA has made its determinations public as soon as practicable by posting those determinations on its website. We recognize that publication in the Federal Register often lags behind EPA’s decisions because of resource constraints and competition with other Federal Register notices. We are pleased to see new chemicals cleared for production.
Nevertheless, EPA’s pace of approving new chemicals for the marketplace has slowed tremendously since enactment of TSCA reform. Furthermore, these notices do not provide any line of sight on the reasons contributing to the delays, or EPA’s resolution of these issues. To date, EPA has only published its final determinations for substances with low concerns for heath and ecological hazards. With only 28 new chemicals approved from the time period of December 1, 2016, to February 28, 2017, EPA will need to work much faster to even come close to its annual average number of 700-800 PMN reviews and keep the backlog of cases under review from continuing to grow.
By Lynn L. Bergeson and Margaret R. Graham
The U.S. Environmental Protection Agency (EPA) has just announced that its Office of Pollution Prevention and Toxics (OPPT) is holding a meeting on December 14, 2016, from 9:00 a.m. to 12:00 p.m. (EST) to update the public on changes to the New Chemicals Review Program under the Toxic Substances Control Act (TSCA), as amended by the Frank R. Lautenberg Chemical Safety for the 21st Century Act. EPA states that it will “describe its review process for new chemicals under the amended statute, as well as discuss issues, challenges, and opportunities that the Agency has identified in the first few months of implementation.” During the meeting, interested parties will have the opportunity to provide input on their experiences with the New Chemicals Review Program, including submittal of pre-manufacture notices (PMN), microbial commercial activities notices (MCAN), and significant new use notices (SNUN), under TSCA Section 5. EPA states that information obtained during this meeting and from submitted written comments will be considered as it works to implement the new requirements and increase efficiency in its review process under TSCA.
There has been considerable concern with the impact of new TSCA on EPA’s New Chemicals Program. EPA is to be recognized for seeking stakeholder input, and interested parties should come to the meeting with thoughtful questions and clear expectations as to what stakeholders can reasonably achieve from the meeting. This could be the first of several such meetings to help interested parties understand the processes OPPT is developing in response to new TSCA, add greater transparency to those processes, and to assist EPA as appropriate with implementing the new law.
In-person and webinar registration is available now. EPA is requesting that interested parties register by December 13, 2016. Written comments will be accepted via www.regulations.gov under Docket EPA-HQ-OPPT-2016-0658. More information on new chemicals review under amended TSCA is available in our memorandum TSCA Reform: An Analysis of Key Provisions and Fundamental Shifts in the Amended TSCA.
By Charles M. Auer and Oscar Hernandez, Ph.D.
On September 21, 2016, the U.S. Environmental Protection Agency (EPA) Office of Pollution Prevention and Toxics (OPPT) announced its regulatory determinations for a batch of Microbial Commercial Activity Notices (MCAN) and premanufacture notices (PMN).
The announcement by EPA consisted of ten new microorganisms submitted as MCANs and seven new chemicals submitted as PMNs. All microorganisms and chemical substances were determined “not likely to present an unreasonable risk” (per Toxic Substances Control Act (TSCA) Section 5(a)(3)(C)). This determination was based in all cases on the low hazard of the microorganism or the chemical substance. The microorganisms and chemical substances are:
- J-16-0010: Generic: Saccharomyces cerevisiae modified;
- J-16-0011, J-16-0012, J-16-0013, J-16-0014, J-16-0015, and J-16-0016: Generic: Biofuel Producing Organism;
- J-16-0017: Generic: Saccharomyces cerevisiae modified;
- J-16-0018: Generic: Saccharomyces cerevisiae modified; and
- J-16-0006: Generic: Trichoderma reesei modified.
- P-16-0343 and P-16-0344: Generic: Modified urethane polymer;
- P-16-0391: Generic: Polyester polyol polymer with aliphatic isocyanate and phenol derivates;
- P-16-0366: Generic: Blocked polyisocyanate;
- P-16-0373: Generic: Tris(alkyloxyphenyl)triazine compounds;
- P-16-0466: Generic: 2,5-Furandione, telomer with ethenylbenzene and (alkylethyl)benzene, amides with polyethylene-polypropylene glycol aminoalkyl Me ether, alkali salts; and
- P-16-0348: Generic: Polypentaerythritol, mixed esters with linear and branched monoacids.
In both types of submissions, the EPA reports are facilitated by the use of templates. The footnotes in the template describe the approach and methodology followed to identify uses and to determine persistence, bioaccumulation, human health hazard, and environmental hazard.
The MCAN template includes three footnotes that describe: (1) identification of “known” and “reasonably foreseen” uses; (2) criteria for human health hazard; and (3) criteria for ecological hazard.
The PMN template includes seven footnotes that describe: (1) identification of “known” and “reasonably foreseen” uses; (2) criteria for persistence; (3) criteria for bioaccumulation; (4) criteria for human health hazard ranking; (5) criteria for ecological hazard ranking; (6) link to the TSCA New Chemicals Program Chemical Categories; and (7) link to the Organization for Economic Cooperation and Development’s (OECD) 2014 Guidance on Grouping of Chemicals. The OECD link and a link to the Sustainable Futures Manual within footnote 5 are obsolete.
The ecological hazard ranking criteria are consistent with OPPT’s past practice. The human health ranking criteria departs from practice by using a single descriptor for all endpoints. Other approaches that EPA has used for several years utilize criteria that address specific end points. Examples include the ChAMP (Chemical Assessment and Management Program) Methodology and the section 8(e) program.
For the MCANs, the “unlikely to present” determination is based on the human health hazard criteria identified in the template for human health hazard: “a microorganism is considered to have low human health hazard if it is not known to be a frank human pathogen that causes disease in healthy adults, and/or animal studies have demonstrated a lack of pathogenicity or toxicity”; and “a microorganism is considered to be of low ecological hazard if it is not known to be an animal or plant pathogen, and the genetic modifications do not impart pathogenic or toxigenic traits, and the introduced genetic material does not provide a selective growth advantage in outcompeting indigenous microbial communities in the environment.”
For the chemical substances, estimates indicated that the majority of these chemicals were persistent or very persistent and bioaccumulation potential was low for all chemicals. Human health hazard was determined by using a combination of physicochemical properties and structural analogs. Ecological hazard determinations utilized analog information and, as appropriate, estimates made by the Ecological Structure Activity Relationships (ECOSAR) Class Program. Exposure estimates were not conducted based of the low hazard concern from which followed the “not likely to present an unreasonable risk” determination.
On July 18, 2016, Bloomberg BNA’s Daily Environmental Report reported on the U.S. Environmental Protection Agency’s (EPA) new chemical notice process, and included insight from industry leaders at Bergeson & Campbell, P.C.’s (B&C®) July 14, 2016, webinar, The New TSCA: Impacts on New and Existing Chemicals Programs.
B&C Managing Partner Lynn L. Bergeson was quoted as saying that premanufacture notifications, or PMNs, that chemical manufacturers must submit before they can produce or import a new chemical, and significant new use notifications, which companies must submit before they can make or use certain chemicals in new ways, “need to be much more strategic, thoughtful and detailed.”
Both the old and newly amended TSCA state the EPA's “authority over chemical substances and mixtures should be exercised in such a manner as to not impede unduly or create unnecessary economic barriers to technological innovation,” Bergeson stated, referring to Section 2601(b)(3). The new law makes “very consequential changes” to the new chemicals provisions of TSCA as EPA will have to balance carefully the requirements imposed by different sections of the law.
Richard A. Denison, Ph.D., Senior Scientist with the Environmental Defense Fund, stated that the changes the amended law makes to EPA's new chemicals program “are not trivial.” Further, the changes will make it easier for the public to understand why EPA concludes that new chemicals may or may not enter commerce, what restrictions it may impose on the uses of those chemicals, and why.
BNA’s article, “Detailed New Chemical Applications Needed to Boost Market Chances: Attorneys,” is available online, through paid subscription.