By Lynn L. Bergeson and Carla N. Hutton
On June 28, 2019, the U.S. Environmental Protection Agency (EPA) released the draft risk evaluations for cyclic aliphatic bromide cluster (HBCD) and 1,4-dioxane, two of the first ten chemicals undergoing risk evaluation under the amended Toxic Substances Control Act (TSCA). In its June 28, 2019, press release, EPA states in the draft risk evaluation for HBCD, it did not find unreasonable risk to the general population, consumers, workers, or the environment. According to EPA, in the draft risk evaluation for 1,4-dioxane, EPA did not find unreasonable risk to the environment, but the data “show there could be unreasonable risks to workers in certain circumstances.” EPA states: “It is important to note that for the general population, including children, environmental statutes administered by EPA such as the Clean Air Act, the Safe Drinking Water Act, the Clean Water Act, and the Resource Conservation and Recovery Act, adequately assess and effectively manage risks from 1,4-dioxane.”
On Monday, July 1, 2019, EPA will publish a Federal Register notice announcing the availability of the draft risk evaluations and beginning a 60-day comment period. The draft risk evaluations will be peer reviewed by the Science Advisory Committee on Chemicals (SACC) on July 29- August 2, 2019. SACC will hold a preparatory virtual meeting to discuss the scope and clarity of the draft charge questions on July 10, 2019.
By Lynn L. Bergeson, Carla N. Hutton, and Margaret R. Graham
On December 21, 2018, the U.S. Environmental Protection Agency’s (EPA) Deputy Assistant Administrator for the Office of Chemical Safety and Pollution Prevention (OCSPP) Nancy B. Beck, Ph.D., signed a Federal Register document denying a Toxic Substances Control Act (TSCA) Section 21 petition requesting that EPA amend the Chemical Data Reporting (CDR) rule to increase asbestos reporting, exclude asbestos from certain exemptions, and lift Confidential Business Information (CBI) claims on asbestos information reported under the CDR rule. Due to the government shutdown, the notice has not yet been published in the Federal Register, but EPA has posted a prepublication version. EPA’s carefully reasoned response to the request is set forth in the notice.
The petition was filed on September 27, 2018, by the Asbestos Disease Awareness Organization, American Public Health Association, Center for Environmental Health, Environmental Working Group, Environmental Health Strategy Center, and Safer Chemicals, Healthy Families (Petitioners). According to EPA, Petitioners requested the following specific amendments to the existing CDR rule to collect information for the ongoing asbestos risk evaluation being conducted under TSCA Section 6(b) (required to be completed by December 22, 2019), and, if necessary, any subsequent risk management decisions under TSCA Section 6(a):
- Amend the CDR rule to require immediate submission, “from January 1, 2019, to April , 2019,” of reports on asbestos for the 2016 reporting cycle.
- Amend the naturally occurring chemical substance exemption at 40 C.F.R. § 711.6(a)(3) to make the exemption inapplicable to asbestos;
- Amend the articles exemption at 40 C.F.R. § 711.10(b) to require reporting pursuant to the CDR rule for all imported articles in which asbestos is present at detectable levels;
- Amend the CDR rule to exclude asbestos from the exemption at 40 C.F.R. § 711.10(c) to require the reporting of asbestos as a byproduct or impurity;
- Amend the reporting threshold for CDR at 40 C.F.R. § 711.8(b) to set a reporting threshold of ten pounds for asbestos; and
- Amend 40 C.F.R. § 711.8 to add processors of asbestos and asbestos-containing articles as persons required to report under the CDR rule.
In addition to the above requests, Petitioners also requested that EPA use its authority under TSCA Sections 14(d)(3) and 14(d)(7) to lift CBI claims on asbestos information reported under the CDR rule. EPA responds in detail as to why it is denying each of these requests. A short summary is below.
- 2016 Reporting Cycle: EPA states that based on the extensive research and data gathering already conducted during the asbestos risk evaluation process, EPA believes that “the requested amendments to the CDR rule would not lead to the reporting of new information that would contribute to EPA’s ongoing asbestos risk evaluation or, if needed, subsequent risk management decision(s)” and Petitioners have “failed to set forth sufficient facts to establish that it is necessary to issue the requested amendment to require immediate past reporting of the manufacturing and use of asbestos under the CDR rule for the 2016 reporting cycle.”
- Naturally Occurring Substances Exemption: EPA states that removing the exemption for reporting on naturally occurring substances for asbestos would not provide any additional data to EPA “given that the purpose of domestic manufacturing or importing of raw asbestos is to make asbestos diaphragms, for which EPA already has use and exposure information” and Petitioners have “failed to set forth sufficient facts to establish that it is necessary to issue the requested amendment to lift the naturally occurring chemical substances exemption for asbestos under the CDR rule.”
- Articles Exemption: EPA states that it believes that lifting the articles exemption for the reporting of asbestos under the CDR rule “would not provide any new use information that would inform the ongoing risk evaluation or any subsequent risk management decisions, if needed” and that Petitioners “have failed to set forth sufficient facts to establish that it is necessary to issue the requested amendment to lift the articles exemption for asbestos under the CDR rule.”
- Reporting as a Byproduct or Impurity: EPA states that it does not believe that making the requested amendment to the CDR rule would result in “reporting of asbestos as an impurity or a byproduct, for uses that are known or reasonably ascertainable,” that Petitioners “have not provided evidence that there are such known uses that are ongoing but remain outside the scope of the asbestos risk evaluation,” and “have failed to set forth sufficient facts to establish that it is necessary to issue the requested amendment to lift the byproducts and impurities exemptions for asbestos under the CDR rule.”
- Reporting Threshold of Ten Pounds: EPA states that Petitioners “fail to show that lowering the reporting threshold would provide any new information to EPA” and, therefore, finds that the Petitioners “have failed to set sufficient facts to establish that it is necessary to issue the requested amendment to lower the CDR reporting threshold for asbestos.”
- Adding Processors to CDR: EPA states that it does not believe that “requiring processors of asbestos under the CDR rule will provide useful information not already in its possession,” Petitioners “have failed to indicate what additional information EPA would collect by requiring asbestos processors to report under the CDR rule” and, therefore, EPA finds that the Petitioners “have failed to set forth sufficient facts to establish that it is necessary to issue the requested amendment to require processors of asbestos to report under the CDR rule.”
- Lifting CBI Claims: EPA states that Petitioners’ request to lift CBI claims on asbestos information reported under the CDR rule is "not appropriate for a TSCA Section 21 petition, as a TSCA Section 21 only pertains to the “issuance, amendment, or repeal of a rule under TSCA sections 4, 6, or 8, or an order under TSCA sections 4 or 5(e) or (f),” therefore, a TSCA Section 21 petition “is not a vehicle to petition EPA to initiate an action under TSCA section 14.” Further, EPA states that it believes that “disclosure of CBI would have no practical relevance to the risk evaluation or risk determination as the CBI claims are limited and EPA retains the ability to characterize the information without revealing the actual protected data.”
Please look for the full analysis in our upcoming memorandum that will be posted on our Regulatory Developments page.
By Lynn L. Bergeson and Margaret R. Graham
On July 24, 2018, the U.S. Environmental Protection Agency (EPA) announced it was extending the comment periods for all ten problem formulation documents and the systematic review approach document in Toxic Substances Control Act (TSCA) risk evaluations that were published on June 11, 2018, by 21 days; comments on these documents are now due by August 16, 2018. EPA states that although the comment period will end in 21 days (August 16, 2018), “EPA will try to consider any additional comments received after this date. However, incorporation of late comments may not be included in the documents for peer review. There will be an additional comment period following the publication of each of the draft risk evaluations.”
Links to the problem formulation dockets are available in our blog item “EPA Releases Problem Formulations Documents on First Ten Chemicals; Systematic Review Approach Document; and Asbestos SNUR” and a more detailed analysis is available in our memorandum “EPA Takes ‘Three Important Steps’ Intended to Ensure Chemical Safety.”
By Lynn L. Bergeson and Carla N. Hutton
On June 6, 2018, the New York State Department of Environmental Conservation (NYSDEC) released its final policy and form for manufacturer disclosures under the Household Cleansing Product Information Disclosure Program. The Disclosure Program is similar to the recently enacted California Cleaning Product Right to Know Act of 2017 which requires the disclosure of cleaning product ingredients by way of website or product label. The Household Cleansing Product Information Disclosure Program requires manufacturers of cleaning products sold in New York to disclose chemical ingredients and identify any ingredients that appear on authoritative lists of chemicals of concern on their websites. New York states that it “will be the first state in the nation to require such disclosure and the State’s program goes beyond initiatives in other states by requiring the robust disclosure of byproducts and contaminants, as well as chemicals with the potential to trigger asthma in adults and children.” NYSDEC has posted the Household Cleansing Product Information Disclosure Program Certification Form and Program Policy and a response to comments.
Our recent memorandum provides an in-depth review of important information from the Disclosure Program Certification Form and Program Policy, including covered products and definitions, information to be disclosed, the lists of chemicals of concern covered by the Program, and the effective dates. With the first disclosures due July 1, 2019, manufacturers need to review the Program Policy and begin compiling information concerning the ingredients of their products.
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, 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 Lynn L. Bergeson
As required by the amended Toxic Substances Control Act (TSCA), on June 22, 2017, one year after passage of the Frank R. Lautenberg Chemical Safety for the 21st Century Act, the U.S. Environmental Protection Agency (EPA) has issued the three framework rules in final. EPA also released draft guidance to assist in developing and submitting draft risk evaluations. The final rules are:
- Procedures for Chemical Risk Evaluation;
- Procedures for Prioritization of Chemicals for Risk Evaluation; and
- TSCA Inventory Notification (Active-Inactive) Requirements.
EPA also released scoping documents of the risk evaluations and supplemental resources on the first ten chemicals under amended TSCA, as it stipulated in its annual report on risk evaluations. Links to the scoping documents for these ten chemicals, as well as strategies for conducting literature searches, are below:
- 1, 4-Dioxane;
- Methylene Chloride;
- N-Methylpyrolidone (NMP);
- Pigment Violet 29;
- Carbon Tetrachloride;
- Cyclic Aliphatic Bromide Cluster (HBCD); and
- Tetrachloroethylene (perchloroethylene).
Administrator Scott Pruitt signed them and they were released to the general public shortly thereafter. They are expected to be effective 60 days after publication in the Federal Register. Bergeson & Campbell, P.C. (B&C®) will provide feedback on the final rules in upcoming memoranda on each final rule, as well as a memorandum on the draft guidance on developing risk evaluations. Please look for these memoranda on our website under “Regulatory Developments.”
By Lynn L. Bergeson and Margaret R. Graham
On June 19, 2017, the U.S. Environmental Protection Agency posted a memo authorizing the opening of comment periods for the public to comment on the risk evaluation process for the first ten chemicals it is evaluating under the revised Toxic Substances Control Act (TSCA) to determine whether they “present an unreasonable risk of injury to health or the environment.” Specifically, EPA states it is interested in “information from the public that could be useful to the Agency in conducting problem formulation,” which is the “next step in the process of conducting the required risk evaluations for these chemicals.” Comments are due September 19, 2017.
EPA’s 2017 Annual Report on Risk Evaluations issued in February stated that it expected to issue a scoping document on each of the individual chemicals by June 19, 2017, which must 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 not yet issued the scoping documents, but is expected to do so soon. After the scoping documents have been published, EPA stated that it would “continue with the risk evaluation process as described in the statute and the associated Risk Evaluation Rule [to be issued in final on June 22, 2017], with the expectation to complete the risk evaluation in the 3-3.5 year timeframe required by law.”
The list of ten chemicals and their corresponding docket ID numbers are:
- 1, 4 Dioxane, EPA-HQ-OPPT-2016-0723;
- Methylene Chloride, EPA-HQ-OPPT-2016-0742;
- 1-Bromopropane, EPA-HQ-OPPT-2016-0741;
- N-Methylpyrolidone (NMP), EPA-HQ-OPPT-2016-0743;
- Asbestos, EPA-HQ-OPPT-2016-0736;
- Pigment Violet 29, EPA-HQ-OPPT-2016-0725;
- Carbon Tetrachloride, EPA-HQ-OPPT-2016-0733;
- Trichloroethylene, EPA-HQ-OPPT-2016-0737;
- Cyclic Aliphatic Bromide Cluster (HBCD), EPA-HQ-OPPT-2016-0735; and
- Tetrachloroethylene, EPA-HQ-OPPT-2016-0732.
Revised TSCA requires that the three framework rules, which include the procedures for evaluating existing chemical risks rule (Risk Evaluation Rule), the procedures to prioritize chemicals for risk evaluation rule, and the requirements for TSCA Inventory notification (active-inactive) rule, be issued in final by June 22, 2017.
More information on these framework rules will be available on our blog after they are issued in final.
By Lynn L. Bergeson and Margaret R. Graham
On March 6, 2017, the White House’s Office of Management and Budget (OMB), via the Office of Information and Regulatory Affairs (OIRA), issued Memorandum: Spring 2017 Data Call for the Unified Agenda of Federal Regulatory and Deregulatory Actions, a memorandum for regulatory policy officers at executive departments and agencies and managing and executive directors of certain agencies and commissions, with the subject: Spring 2017 Data Call for the Unified Agenda of Federal Regulatory and Deregulatory Actions. Per EO 12866 (Oct. 4, 1993), federal agencies are directed to prepare a “Regulatory Plan (Plan) of the most important significant regulatory actions that the agency reasonably expects to issue in proposed or final form in that fiscal year or thereafter,” which they usually do semi-annually, in the spring and the fall. This memo reiterates the directives of past executive orders on the regulatory agendas, but also includes new directives and focus, referring largely to the directives in the January 30, 2017, Executive Order (EO), Reducing Regulation and Controlling Regulatory Costs.
The memorandum states that the Unified Agendas should “describe all regulations under development or review during the 12 months following publication. Agencies should include, at a minimum, any plans to publish or otherwise implement an Advance Notice of Proposed Rulemaking (“ANPRM”), a Notice of Proposed Rulemaking (“NPRM”), or a Final Rule,” but also requests them to reflect attention to the following:
- The total incremental costs of any new significant regulatory actions issued between noon on January 20, 2017, and September 30, 2017, shall, to the extent permitted by law, be fully offset as of September 30, 2017; and
- Agencies should, for each new significant regulatory action that imposes costs and that an agency plans to issue on or before September 30, 2017, identify two existing regulatory actions the agency plans to eliminate or propose for elimination on or before September 30, 2017.
In an effort to “facilitate the fiscal year 2018 regulatory budget planning process,” the memorandum requests that spring 2017 submissions also include “a preliminary estimate of the total costs or savings associated with each of your planned fiscal year 2018 significant regulatory actions and offsetting deregulatory actions.” The memorandum also lists suggested steps that it states will improve an agency’s Unified Agenda, including:
- Considering whether the listing of “long-term” entries benefits readers, especially for those for which no substantial activity was expected within the coming year;
- Removing entries that agencies do not realistically intend to take action on over the next 12 months, especially ones that the agency does not have the resources to take action on; and
- Other more administrative suggestions, such as categorization; consistency of agency data; accuracy of timetable information; and abstract information for the entries that informs readers of the reason the rulemaking is under development and what the agency intends to accomplish.
Agencies must submit all of their Unified Agenda materials by March 31, 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.