By Lynn L. Bergeson, Charles M. Auer, Richard E. Engler, Ph.D., and Carla N. Hutton
On April 5, 2019, the U.S. Environmental Protection Agency (EPA) issued a final rule that will establish final significant new use rules (SNUR) under the Toxic Substances Control Act (TSCA) for 13 chemical substances that are the subject of premanufacture notices (PMN). 84 Fed. Reg. 13531. The final rule is significant because the 13 chemical substances are not also subject to consent orders. During the review, EPA identified certain reasonably foreseen conditions of use that it designated as significant new uses in the final SNURs. The final SNURs effectively prohibit the designated new use unless a person submits a notice to EPA, EPA makes a determination, and it takes any necessary action to mitigate any identified potential risk. The final rule will become effective on June 4, 2019. Please see our full memorandum for more information on this final rule.
By Lynn L. Bergeson and Margaret R. Graham, M.S.
On March 15, 2019, U.S. Environmental Protection Agency (EPA) Administrator Andrew Wheeler signed a final rule prohibiting the manufacture (including import), processing, and distribution in commerce of methylene chloride for consumer paint and coating removal, including distribution to and by retailers; requiring manufacturers (including importers), processors, and distributors, except for retailers, of methylene chloride for any use to provide downstream notification of these prohibitions; and requiring recordkeeping. The rule states that EPA has determined that “the use of methylene chloride in consumer paint and coating removal presents an unreasonable risk of injury to health due to acute human lethality.” This final rule does not prohibit the use of methylene chloride in commercial paint and coating removal, however. EPA is instead soliciting comment, through an advance notice of proposed rulemaking (ANPRM) also signed by Administrator Wheeler on March 15, 2019, on questions related to a potential training, certification, and limited access program as an option for risk management for all of the commercial uses of methylene chloride in paint and coating removal. More information will be available on these issuances in a forthcoming memorandum to be available on our Regulatory Developments webpage.
By Lynn L. Bergeson, Charles M. Auer, Richard E. Engler, Ph.D., and Oscar Hernandez, Ph.D.
The U.S. Environmental Protection Agency’s (EPA) release of its Toxic Substances Control Act (TSCA) Section 5(a)(3)(C) determination for P-16-0510 represents a significant step in EPA’s implementation of the New Chemicals Program under new TSCA. The substance is a polymer (a copolymer of ethylene glycol and propylene glycol end-capped with acrylamide groups). It is intended to be used as a deodorizer in a variety of products, including floor cleaners, cat litter, fabric freshener sprays, and other consumer products.
Notably, EPA’s determination document specifies the conditions of use that are intended, known, and reasonably foreseen. EPA states that there are no known or reasonably foreseen conditions of use other than those intended by the submitter. This may appear to be a controversial statement. Based on EPA’s interpretation of “conditions of use,” it would not pass legal muster to speculate that “anybody could manufacture or use it for anything” and, hence, impose use restrictions to prevent purely speculative applications with no basis in fact or reality. EPA has repeatedly stated that it would base what is reasonably foreseen on information, knowledge, or experience, not on any conceivable condition of use.
EPA identifies the new chemical’s potential health hazard endpoints based on the acrylate/acrylamide category. The concerns are based on acrylamide itself and some low molecular acrylamide analogs and include mutagenicity, developmental toxicity, reproductive effects, neurotoxicity, and a “marginal potential” for oncogenicity. This too may sound alarming. The real question, however, is how toxic is the new chemical and are exposures expected to exceed a “safe” level.
In this case, EPA specifically considers the low-molecular weight (LMW) components of the polymer (i.e., the “worst case”) in its assessment and identifies two analogs of the LMW components. Both analogs have similar structural features (they are end-capped with acrylates), so both are expected to share the same mode of action, and have similar molecular weights as the LMW components of the premanufacture notification (PMN) substance. EPA states that it also considered the toxicity of acrylamide in its assessment. We note, however, that acrylamide is not a good analog because it is substantially lower molecular weight than the LMW components of the PMN substance. Based on the identified analogs, EPA set a no observable adverse effect level (NOAEL) of 250 mg/kg/day for systemic toxicity based on a combined repeat dose/reproductive/developmental toxicity screening test (OECD 422). This study tests for a chemical’s potential to cause toxicity and the primary endpoints of concern relevant to the category (developmental, reproductive, and neurotoxicity). This NOAEL would put the substance in the low-to-moderate toxicity category. Note that despite the nominally alarming set of health endpoints identified in EPA’s category assessment, the 422 study shows the analog is not especially toxic to mammals. By way of contrast, EPA’s most recent Integrated Risk Information System (IRIS) assessment of acrylamide identified a NOAEL of 0.5 mg/kg-day.
EPA also identifies ecotoxicity concerns. Using its predictive models, EPA predicts toxicity levels for both acute and chronic effects to aquatic species and sets concentrations of concern (CoC) at 425 ppb for acute exposures and 43 ppb for chronic exposures. These levels put the substance in the “moderate” category for environmental hazard.
EPA then applies exposure modeling to predict exposures to workers, the general population, and consumers. EPA found that predicted exposures are sufficiently below EPA’s concern level to not present an unreasonable risk to workers, the general population, or consumers. EPA even found that at the “worst case” of 100 percent PMN substance, exposures would still be sufficiently below EPA’s concern level. EPA also evaluated surface water concentrations and found that the estimated maximum acute and chronic concentrations did not exceed the CoCs.
EPA reviewed the PMN, reviewed likely and potential exposures to workers, the general population, consumers, and aquatic species, and did not identify any foreseeable conditions of use that would lead EPA to predict that unreasonable risk was likely.
This is a marked and welcomed departure from previous TSCA Section 5(a)(3)(C) decisions. In nearly all cases in the past, EPA only made a not likely determination if it identified a low hazard for both health and ecological effects (“low/low” cases). Absent a low/low finding, EPA seemingly believed that there could be some conditions of use that could contribute exposures that could exceed EPA’s concern levels. Based on our review, EPA did not explain how it differentiated between “any possible/foreseeable” and “reasonably foreseeable” conditions of use. Instead, if EPA could imagine a set of circumstances that could elicit an exceedance, EPA was of the view that new TSCA precluded it from making a Section 5(a)(3)(C) finding. (While some stakeholders might applaud an approach based on concepts such as the European Union’s Precautionary Principle, this is not how new TSCA, or U.S. environmental legislation more generally, is structured.)
In the case of P-16-0510, EPA more carefully applied new TSCA as written when it identified a low/moderate health concern and a moderate eco concern, and nevertheless took a reasonable approach grounded on the law to go beyond mere consideration of potential hazard and to interpret the “reasonably foreseen” conditions of use and assess unreasonable risk as new TSCA requires. We support this more measured approach and believe it better meets the statutory intent and requirements. As we have written previously, in our view, a “not likely” finding is not limited to cases in which toxicity is so low that exceedances are unimaginable. Rather, EPA must limit its consideration to those conditions of use that are reasonably likely to occur and must evaluate unreasonable risks, not merely hazard, and regulate to protect to the “extent necessary” to protect against such unreasonable risks.
We applaud EPA’s more measured approach that likely indicates a maturation of its understanding of what is needed to meet a not likely determination. We urge EPA to articulate its thinking on what is and is not “reasonably foreseeable” and what PMN submitters can do to help EPA understand not only what is intended, but what might be reasonably foreseen to occur.
By Lynn L. Bergeson and Margaret R. Graham
On June 1, 2018, the U.S. Environmental Protection Agency (EPA) released the much anticipated first ten problem formulation documents; its systematic review approach document; and a significant new use rule (SNUR) proposal enabling it to prevent new uses of asbestos for public comment. Links and short summaries are provided below.
EPA states that the problem formulation documents refine the conditions of use, exposures, and hazards presented in the scope of the risk evaluations for the first ten chemicals to be evaluated under the Toxic Substances Control Act (TSCA) and present refined conceptual models and analysis plans that describe how EPA expects to evaluate the risks and that they are an important interim step prior to completing and publishing the final risk evaluations by December 2019. Comments on the problem formulation documents will be due 45 days after these documents are published in the Federal Register. The problem formulation documents are:
- 1-Bromopropane (1-BP);
- Carbon Tetrachloride;
- Cyclic Aliphatic Bromide Cluster (HBCD Cluster);
- Methylene Chloride;
- N-Methylpyrrolidone (NMP);
- Pigment Violet 29; and
- Trichloroethylene (TCE).
EPA states the systematic review approach document will guide its selection and review of studies in addition to providing the public with continued transparency regarding how the Agency plans to evaluate scientific information. Comments will be due 45 days after publication in the Federal Register. Also included on the systematic review web page is EPA’s Response to Public Comments Related to the Supplemental Files Supporting the TSCA Scope Documents for the First Ten Risk Evaluations.
For asbestos, EPA is proposing an asbestos SNUR for certain uses of asbestos (including asbestos-containing goods) that would require manufacturers and importers to receive EPA approval before starting or resuming manufacturing, and importing or processing of asbestos. EPA states that this review process, the first such action on asbestos ever proposed, would provide EPA with the opportunity to evaluate the intended use of asbestos and, when necessary, take action to prohibit or limit the use. Comments will be due 60 days after publication in the Federal Register.
More information on the first ten chemical evaluations is available on our blog. A more detailed analysis will be available next week on our regulatory developments webpage.
By Lynn L. Bergeson and Margaret R. Graham
On March 9, 2018, as a first step in developing a proposed rule regulating certain persistent, bioaccumulative, and toxic (PBT) chemicals, the U.S. Environmental Protection Agency (EPA) announced that it is seeking nominations for individuals who represent small businesses, small governments, and small non-for-profit organizations to serve as Small Entity Representatives (SER) to provide input on potential impacts of PBT regulation. EPA states the role of a SER is “to provide advice and recommendations to ensure that the Panel carefully considers small entity concerns regarding the impact of the potential rule on their organizations and to communicate with other small entities within their sector who do not serve as SERs,” and will ask the SERs to provide comments on behalf of their company, community, or organization and advise a soon to be created Small Business Advocacy Review (SBAR) panel regarding potential impacts to small businesses that could result from the regulation of certain identified PBTs. The SBAR panel will include federal representatives from EPA, the Small Business Administration, and the Office of Management and Budget (OMB). After collecting input from the small entities, the panel will make recommendations to the Agency on the development of a proposed rule to regulate these PBT chemicals.
Under Section 6(h) of the Toxic Substances Control Act (TSCA), EPA is required, not later than three years after the date of enactment (June 22, 2019), to propose rules regarding the regulation of certain PBTs selected from the 2014 update of the TSCA Work Plan for Chemical Assessments that: (1) EPA has a reasonable basis to conclude are toxic and that with respect to persistence and bioaccumulation score high for one and either high or moderate for the other have been identified; and (2) exposure to which under the conditions of use is likely to the general population or to a potentially exposed or susceptible subpopulation identified by the Administrator, or the environment, on the basis of an exposure and use assessment conducted by the Administrator. The PBT chemicals that EPA has selected are:
- Decabromodiphenyl ethers (DecaBDE), used as a flame retardant in textiles, plastics, wiring insulation, and building and construction materials;
- Hexachlorobutadiene (HCBD), used as a solvent in the manufacture of rubber compounds and as hydraulic, heat transfer or transformer fluid;
- Pentachlorothiophenol (PCTP), used as a mercaptan (sulfur) cross-linking agent to make rubber more pliable in industrial uses;
- Phenol, isopropylated, phosphate (3:1), used as a flame retardant in consumer products and as lubricant, hydraulic fluid, and other industrial uses; and
- 2,4,6-Tris(tert-butyl) phenol, an antioxidant that can be used as a fuel, oil, gasoline or lubricant additive.
The Regulatory Flexibility Act requires agencies to establish a SBAR panel for rules that may have a significant economic impact on a substantial number of small entities. EPA states that the panel process will offer “an opportunity for small businesses, small governments and small not-for-profit organizations … to provide advice and recommendations to ensure that the EPA carefully considers small entity concerns regarding the impact of the potential rule on their organizations.”
EPA states eligible SERs are small entities that manufacture, process, distribute in commerce, use, or dispose any of the five selected PBT chemicals. EPA is seeking self-nominations directly from entities that may be subject to the rule requirements. Other representatives, such as trade associations that exclusively or at least primarily represent potentially regulated small entities, may also serve as SERs. Self-nominations may be submitted through the instructions outlined on EPA’s Potential SBAR Panel website and must be received by March 22, 2018. More information about the SBAR process is available online.
By Lynn L. Bergeson, Charles M. Auer, and Margaret R. Graham
On December 21, 2017, the U.S. District Court for the Northern District of California ruled that the U.S. Environmental Protection Agency (EPA) had wrongly dismissed a Toxic Substances Control Act (TSCA) Section 21 petition submitted by Food & Water Watch, Inc. and other citizens seeking the regulation of fluoridation of drinking water supplies under TSCA Section 6(a) on grounds that the ingestion of fluoride poses an unreasonable risk to humans. Food & Water Watch, Inc. v. EPA, Case No. 17-cv-02162-EMC (N.D. Cal.) (Food & Water Watch). In 2017, EPA denied the Section 21 petition on the grounds that it failed to address conditions of use other than the fluoridation of drinking water. 82 Fed. Reg. 11878 (Feb. 27, 2017).
In a fairly scathing rebuke of EPA’s legal positions, the court denied EPA’s motion to dismiss the petitioner’s judicial challenge of EPA’s administrative denial of the Section 21 petition and, in so doing, essentially rejected EPA’s interpretation that a citizen petition must evaluate all conditions of use of a chemical substance in a TSCA Section 6(b) risk evaluation. While we are hesitant to note that “we told you so” in our March 7, 2017, blog item, the analysis noted there was spot on.
At issue in Food & Water Watch is EPA’s legal position that TSCA Section 6 requires that EPA consider all conditions of use in proceedings under that provision. The court rejected this view noting that the “argument has no basis in the statutory text,” and there “is no good reason to believe that the term’s [conditions of use] appearance … [in Section 21] … obligates all citizen petitioners to address all conditions of use.” The court also noted that EPA’s interpretation creates “a disparity between citizen petitions and manufacturer requests” for a Section 6(b) risk evaluation. Under the rules, a manufacturer’s request may be limited only to those particular conditions of use of interest to the manufacturer, citing 40 C.F.R. Section 702.37(b)(4). The court also noted EPA’s change of view on this issue between the proposed and final risk evaluation rule. EPA initially proposed that risk evaluations must consider all conditions of use, but concluded in the final rule that EPA may focus its review on fewer than all conditions of use.
The court’s analysis is clear and well written, and goes into some detail on EPA’s legal reasoning and the problems it identified with it.
This ruling raises interesting issues when viewed in the broader context of pending judicial challenges to EPA’s TSCA framework rules. In those challenges, citizen advocates challenge EPA’s view, as articulated in the final framework rules, that the Agency retains discretion to assess those conditions of use it believes are most relevant for a particular chemical evaluation. In other words, they challenge EPA’s view that fewer than all conditions of use must be considered in a risk evaluation, the very position the court in Food & Water Watch rejected for purposes of Section 21 petitions challenging EPA’s interpretation of a citizen’s legal burden under TSCA Section 6(a). Given that the judicial challenge to the risk evaluation final rule is being heard in the U.S. Court of Appeals for the Ninth Circuit, this district court decision is particularly relevant.
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., Director, OPPT
- Points to Consider (PtC) When Preparing TSCA New Chemical Notifications -- David A. Tobias, Ph.D., Risk Assessment Division, OPPT
- New Chemicals Decision Guidelines Manual Detailed Outline
- Chemical Categories -- Tala R. Henry, Ph.D., Director, Risk Assessment Division, OPPT
- Other Advance Questions -- Tanya Hodge Mottley, Acting Deputy Director of Programs, OPPT
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 May 1, 2017, the U.S. Environmental Protection Agency (EPA) issued a notice in the Federal Register stating it was reopening and extending the comment period for two proposed rules: (1) to prohibit the use of trichloroethylene (TCE) in vapor degreasing; to require manufacturers (including importers), processors, and distributors, except for retailers, of TCE for any use to provide downstream notification of these prohibitions throughout the supply chain; and to require limited recordkeeping (issued January 19, 2017); and (2) to prohibit the manufacture (including import), processing, and distribution in commerce of methylene chloride and N-methylpyrrolidone (NMP) for consumer and most types of commercial paint and coating removal; to prohibit the use of methylene chloride and NMP in these commercial uses; to require manufacturers (including importers), processors, and distributors, except for retailers, of methylene chloride and NMP for any use to provide downstream notification of these prohibitions throughout the supply chain; and to require recordkeeping (issued January 19, 2017). 82 Fed. Reg. 20310.
This is the second extension of the comment period for the proposed rule to ban TCE use in vapor degreasing and the first extension of the comment period for the proposed rule to ban the uses of NMP and methylene chloride for consumer and most types of commercial paint and coating removal. Comments on both proposed rules are now due on May 19, 2017.
By Charles M. Auer, James V. Aidala, and Lynn L. Bergeson
On February 27, 2017, the U.S. Environmental Protection Agency (EPA) announced in a Federal Register notice that it was denying a Toxic Substances Control Act (TSCA) Section 21 petition that requested regulatory action under Section 6 to “prohibit the purposeful addition of fluoridation chemicals to U.S. water supplies,” and that it was making available its response to the petition. 82 Fed. Reg. 11878. The petition was received by EPA on November 23, 2016, and EPA had 90 days in which to respond by either granting or denying the requested action.
- EPA’s response was relatively comprehensive as it went through and provided its views on numerous aspects and issues at play including:
- EPA’s interpretation of the Section 6 provisions regarding conditions of use which asserts that TSCA requires EPA to comprehensively consider and address all conditions of use for a chemical or category of chemicals when considering and taking action under Section 6(a). This point was first made in EPA’s proposed procedural rule for risk evaluations (82 Fed. Reg. 7562, Jan. 19, 2017) that is currently open for comment.
- EPA’s belief that Congress, under the new law, did not intend to empower Section 21 petitioners for regulation under Section 6 to promote chemicals of particular concern and force expeditious action based on risks arising from individual uses of those chemicals (helpfully, in its response, EPA suggests use of a petition under the Administrative Procedure Act to the petitioners for such cases).
- The scientific adequacy of the petitioners’ risks claims for the general public from exposure to fluoridation chemicals in drinking water. EPA identified and discussed in some depth the numerous weaknesses it saw in health, exposure, and risk aspects.
- The petitioners’ inadequate consideration of the public health benefits of fluoridation of drinking water.
- Inadequate support by the petitioners for their belief that action was needed under TSCA rather than under the Safe Drinking Water Act, because of the latter’s purported limitations.
While comment could be offered on many of the points discussed in the decision, we limit our reactions to a few key points. The first is that, given all of the work that is at play under new TSCA, we are frankly surprised that EPA saw the need for such a detailed and comprehensive response to the petitioners. From our perspective, a much shorter and more focused response would have provided an adequate basis for the denial decision.
The second is the way that EPA used its response as a platform to advocate for its interpretation that Section 6 requires that EPA consider all conditions of use in proceeding under that Section. While this point was made in its proposed procedural rule for conducting risk evaluations, that rule was, as indicated, only a proposal and, moreover, it was issued under the prior Administration. This decision, however, because it can be legally challenged by the petitioners, equates to a judicially reviewable act as the petitioners may commence a civil action in federal district court to compel EPA to initiate a rulemaking as requested in the petition. Interesting, too, is the fact that the decision was issued under the new Trump Administration. Given that the response was signed less than a month after the Inauguration, we do not want to over-interpret its significance (perhaps EPA was merely “reiterating” rather than “advocating” its position of record). We also note in passing that it was signed on the same day that the new Administrator was sworn in (February 17).
EPA’s response in this case is expansive and detailed, not only with respect to what EPA concluded the claimed risks of fluoride to be, but also regarding the considerable detail on what the agency apparently has concluded are required elements to qualify as sufficient to grant a Section 21 petition for TSCA Section 6(a) action in the future. The granularity of the discussion is extraordinary.
That EPA disagreed over the possible risks of fluoride is not the most interesting part of the notice. EPA’s response includes what in essence is the following argument about what is required to make a Section 21 argument that EPA can grant: the petition must include a complete risk evaluation, including an analysis of all conditions of use, showing how the TSCA risk standard is exceeded, before EPA would grant the petition.
EPA explicitly states, for example, that if a petition showed that a chemical use clearly exceeds the TSCA risk standard, and did not include all the conditions of use, EPA would still deny the petition to initiate action to control the risk. The notice states (at 11880):
- EPA recognizes that information on a single condition of use, could, in certain instances, suffice to demonstrate that a chemical substance, as a whole, presents an unreasonable risk. Nonetheless, EPA concludes that such information does not fulfill a petitioner’s burden to justify “a rule under [TSCA Section 6],” under TSCA Section 21, since the information would merely justify a subset of an adequate rule.”
So even if a chemical use is shown to cause great harm, it would not merit EPA granting the petition since it is not a complete risk evaluation as EPA wishes to define it. The notice explains EPA’s rationale for this position, essentially arguing that since EPA must assess “all conditions of use” in any control rule they might promulgate, then any outside petition must include all of the same homework before it can be granted.
This seems to obviate the very purpose of Section 21 petitions for Section 6 action, which in the past has been viewed as one way for the public to identify risks of concern to EPA which, for whatever reason, may not be on EPA’s radar. This asserted view, that only a comprehensive risk evaluation considering all conditions of use will suffice, presents a very high threshold for action -- and seemingly an impossibly high threshold to move EPA to act.
The petitioners in this case may decide to challenge the EPA decision. Activists concerned about the possible risks of fluoride have in the past been persistent and dogged about their cause. In this decision, however, there is potentially more than a disagreement over possible risks of fluoride; there might also be arguments over what is or is not sufficient for Section 21 petitions to be granted, or possibly about EPA’s general interpretation, as elaborated in the denial notice and in the risk evaluation procedural rule, that new TSCA does not provide discretion for EPA to evaluate less than all conditions of use in new actions under Section 6.
By Lynn L. Bergeson and Margaret R. Graham
On February 9, 2017, the U.S. Environmental Protection Agency (EPA) issued its 2017 Annual Report on Risk Evaluations. Per Section 26(n)(2) of the amended Toxic Substances Control Act (TSCA), EPA is directed to publish an annual plan at the beginning of each calendar year identifying the chemical substances that will undergo risk evaluations during that year – both risk evaluations that will be initiated and that will be completed -- the resources necessary for completion, and the status and schedule for ongoing evaluations.
Per amended TSCA Section 6(b)(4), on December 19, 2016, EPA designated ten chemical substances for evaluation to determine whether they presented an unreasonable risk of injury to health or the environment. Those chemicals are:
- 1, 4 Dioxane;
- Methylene Chloride;
- Pigment Violet 29;
- Carbon Tetrachloride;
- Cyclic Aliphatic Bromide Cluster (HBCD); and
The report provides an update pertaining to the risk evaluations of these ten chemicals. Risk evaluations on these chemicals have already begun, and EPA anticipates issuing a scoping document for each of them by June 19, 2017. The scoping document will include “the hazard(s), exposure(s), condition(s) of use, and the potentially exposed or susceptible subpopulation(s) the Administrator expects to consider in the evaluation.” EPA has established a docket for each of the ten chemicals and is holding a public meeting on February 14, 2017, to present information on the specific uses and conditions of use for the chemicals. EPA is currently accepting written comments and materials in the individual dockets until March 15, 2017.
Under Section 6(4)(G) of TSCA, EPA is required to complete these risk evaluations within three to three and a half years. EPA’s initial report to Congress issued on January 18, 2017, detailed the resources it needed for completion of the risk evaluations.
More information on EPA’s proposed processes for prioritizing and evaluating chemicals beyond these first ten is available in our memoranda EPA Proposes Procedures to Prioritize Chemicals for Risk Evaluation under TSCA and EPA Releases Proposed Chemical Risk Evaluation Process under New TSCA.