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August 7, 2005.


The opinion of the court was delivered by: JED RAKOFF, District Judge


Plaintiffs West Harlem Environmental Action and the Natural Resources Defense Council, Inc. seek declaratory and injunctive relief against the United States Environmental Protection Agency ("EPA"), alleging that EPA's decision in 2001 to revoke certain child safety measures on rodenticides that EPA had put in place in 1998 violated both the Federal Insecticide, Fungicide, and Rodenticide Act ("FIFRA"), 7 U.S.C. § 136 et seq., and the Administrative Procedure Act ("APA"), 5 U.S.C. § 500 et seq. Both sides have moved for summary judgment. For the reasons that follow, each motion is granted in part and denied in part, and, as a result, the case is remanded in part to the EPA.

FIFRA requires pesticides to be "registered," or licensed, before they are distributed or sold. 7 U.S.C. § 136(a) (setting forth procedure for registration). Before a pesticide can be registered, the EPA administrator must determine, among other things, that the pesticide "will perform its intended function without unreasonable adverse effects on the environment." 7 U.S.C. § 136a(5)(C). The phrase "unreasonable adverse effects on the environment" includes "any unreasonable risk to man or the environment, taking into account the economic, social, and environmental costs and benefits of the use of any pesticide." 7 U.S.C. 136(bb). Rodenticides are pesticides and are accordingly covered by FIFRA. 7 U.S.C. § 136(t) and (u).

  In 1988, Congress amended FIFRA to require EPA to reregister, with some exceptions not here relevant, "each registered pesticide containing any active ingredient contained in any pesticide first registered before November 1, 1984." 7 U.S.C. § 136a-1. As with registration, reregistration requires that the EPA administrator determine that the pesticide "will perform its intended function without unreasonable adverse effects on the environment." 7 U.S.C. § 136a-1(g)(2)(C) (incorporating requirements of § 136a(5)(C)). According to the EPA:
When EPA completes the review and risk management decision for a pesticide that is subject to reregistration (that is, one initially registered before November 1984), the Agency generally issues a Reregistration Eligibility Decision or RED document. The RED summarizes the risk assessment conclusions and outlines any risk reduction measures necessary for the pesticide to continue to be registered in the U.S.
See EPA, Pesticide Tolerance Reassessment & Reregistration (last updated Sept. 14, 2004), available at

  Two REDs issued by the EPA in 1998 and revised in 2001 are the subject of the instant lawsuit. The "Rodenticide Cluster" RED covered the ingredients brodifacoum, bromadiolone, chlorophacinone, diphacinone, bromethalin, and pival. Administrative Record ("Rec.") 193-539. The "Zinc Phosphide" RED covered the ingredient zinc phosphide. Rec. 540-777. Each RED consisted of hundreds of pages analyzing and assessing, inter alia, the physical chemistry of the rodenticides, the effect of the rodenticides on human health (focusing especially on their toxicity and results of accidental exposures), and the effect of the rodenticides on the environment. Each RED was accompanied by detailed appendices. Rec. 193-539, 540-777.

  As part of the decision to reregister the rodenticides covered by these two REDs, the EPA designed a variety of measures to mitigate the risks associated with the rodenticides. Rec. 329-33, 600-06. In Phase I of the risk mitigation process, EPA required improved labeling and the annual submission of poison control data, and restricted the use of certain formulations of the rodenticides. Rec. 330-32, 602-03. EPA also imposed as part of Phase I the two mitigation measures at issue here: each rodenticide would have to contain, first, an indicator dye that would help identify whether children or pets had consumed a rodenticide by dying their mouths and/or hands a bright color, and, second, a bittering agent whose bitter taste would reduce the amount of bait consumed by children and pets. Rec. 330, 337, 601, 607. The REDs did not impose a date by which the indicator dye and bittering agent had to be incorporated into the rodenticides, stating that "the Agency will work with registrants to establish a time frame" for such incorporation but that it would be some point prior to the initial meeting of the "stakeholder group" whose formation constituted Phase II of the risk mitigation process. Rec. 337, 607.

  This stakeholder group, eventually called the Rodenticide Stakeholder Workgroup ("RSW"), see Rec. 1078, was designed to bring together rodenticide registrants, state regulators, poison control centers, rodent control experts, members of the environmental community, and medical professionals "to discuss means of significantly reducing exposures to children and pets," Rec. 333, and "to decide on specific timing and other issues associated with bait dyes, bittering agents, and the content of a special label warning to users of rodenticides that children are particularly vulnerable to ingestion of baits," Rec. 602. Consultation with the RSW was to conclude approximately nine months after the issuance of the REDs, and EPA expected at that time "to have a recommendation on how to further mitigate risk to children and household pets and an implementation plan to achieve significant risk reduction." Rec. 333, 602.

  EPA selected 26 members, drawn from the intended array of groups, to participate in the RSW. Rec. 1084-85, 1113-16. The RSW met five times between the months of March and October 1999. Rec. 1081, 1086-93. On November 15, 2000 the RSW submitted a 35-page report to the Pesticide Program Dialogue Committee ("PPDC") for ultimate consideration by EPA, accompanied by hundreds of pages of appendices that included, inter alia, all the written materials considered by the RSW in reaching its recommendations. Rec. 1076-1111, 1112-1545. In this report, the RSW recommended that EPA not require the two child safety measures at issue here. Rec. 1105-07. As to the indicator dye, the report briefly discussed several difficulties in finding a suitable dye, and concluded that the technology to produce a suitable indicator dye was not yet available. Rec. 1105. As to the bittering agent, the report expressed concerns that the inclusion of a bittering agent would reduce bait acceptance by the targeted rodents, and noted that, despite the success of some bittering agents in EPA laboratory tests, some RSW members believed, based on their experience, that such agents did not work as well in real world situations. Rec. 1106-07. The RSW report recommended, therefore, that both the indicator dye and bittering agent no longer be required in a registered rodenticide, but that further research be done on finding a suitable indicator dye and that EPA allow manufacturers to include the indicator dyes and bittering agents on a voluntary basis. Rec. 1105, 1107, 1110-11.

  Subsequently, on November 28, 2001, EPA published in the Federal Register an Amendment to the Rodenticide Cluster and Zinc Phosphide Reregistration Eligibility Decision (RED) Documents ("Amendment"), Rec. 3044-3046, that rescinded the bittering agent and indicator dye requirements. Rec. 3044. Only two paragraphs of the three-page Amendment actually explained the reasons for the decisions to rescind. Those paragraphs read:
The Rodenticide Cluster and Zinc Phosphide REDs concluded that the rodenticide bait would not be eligible for reregistration without including an indicator dye and bittering agent into the formulations of all rodenticide baits. These indicator dyes were expected to show whether a child had come into contact with the bait by leaving a stain on a child's mouth or hands. By staining the hands, mouth, etc., of an exposed child, EPA believed that such an indicator dye would confirm whether a child ingested or handled any rodenticide bait. The recommendation of the RSW was to drop this requirement from the RED due to the lack of suitable dye. Other issues of concern included: (1) There are no data on indicator dyes as an adequate marker; (2) the dye's effect on the overall efficacy of the product; (3) potential cost of new efficacy testing; (4) distinguishing between stains on a child from food products and stains from indicator dyes; (5) finding a dye that was temporary; and (6) contending with inevitable property damage resulting from contacted surfaces. Some members of the RSW felt that if technology was available, indicator dyes might have merit in managing potential exposure cases. Additional research and development, however, is needed before implementing such a requirement.
The REDS also concluded that a bittering agent be incorporated into the formulations of all rodenticide baits with the intention of minimizing the amount of bait accidentally ingested. In theory, a bittering agent would prevent a child from taking more than one mouthful, thereby possibly limiting the magnitude and severity of the exposure. The RSW recommended dropping the bittering agents as a mandatory requirement. Rodents have the ability to taste bittering agents raising the potential for bait acceptance problems. RSW members associated with urban rat control programs strongly believed that bittering agents adversely affect the efficacy of rodenticide baits. Another point of contention was EPA's reluctance to allow registrants of products containing bittering agents to make representations on the labeling about the bittering agent as a safety feature. Federal regulations prohibit making safety claims on pesticide labeling. (See 40 CFR 156.10(a)(5)(ix)). Also, inclusion of the bittering agent does not make the bait less toxic nor does it provide absolute protection for children.
Rec. 3045-46.

  The Amendment added that, "[w]hile the RSW recommended dropping indicator dyes and bittering agents as mandatory requirements, members also recommended that EPA allow industry to retain the option of including such ingredients in rodenticide bait products on a voluntary basis." Rec. 3046. "Therefore," the Amendment concluded, "based on the findings presented to the PPDC by the RSW, EPA has determined that the rodenticide bait products are eligible for reregistration without indicator dyes and bittering agents. Although indicator dyes and bittering agents may not be necessary in all cases, EPA supports voluntary incorporation of these ingredients in rodenticide formulations." Id.

  On November 9, 2004, plaintiffs filed the instant lawsuit pursuant to 7 U.S.C. §§ 136n(a) and 136n(c) (granting district courts jurisdiction to enforce FIFRA), alleging, in the first count, that EPA's 2001 reregistration of the rodenticides in question without the previously required mitigation measures causes "unreasonable adverse effects on the environment" in violation of FIFRA, 7 U.S.C. §§ 136a(c)(5)(C), 136a-1(g)(2)(C), and 136(bb), and, in the second count, that such reregistration therefore constitutes arbitrary and capricious agency action in violation of the APA, 5 U.S.C. § 706(2)(A). However, because the APA does not provide its own cause of action but merely states the scope of review under FIFRA, see Defenders of Wildlife v. Administrator, EPA, 882 F.2d 1294, 1303 (8th Cir. 1989), the stand-alone APA claim (the second count) must be dismissed, as plaintiffs themselves now concede. See transcript, 6/6/05 at 2. By the same token, however, consideration of plaintiff's first count requires analysis of whether EPA's action under FIFRA was "arbitrary, capricious, an abuse of discretion, or otherwise not in accordance with law," 5 U.S.C. § 706(2)(A). In conducting such an analysis, a court must first ascertain whether the agency "examined the relevant data and articulated a satisfactory explanation for its action including a rational connection between the facts found and the choice made." Motor Vehicle Mfrs' Ass'n of the United States, Inc. v. State Farm Mutual Automobile Ins. Co., 463 U.S. 29, 42 (1983) ("State Farm"). An agency action will be deemed arbitrary and capricious where "the agency has relied on factors which Congress has not intended it to consider, entirely failed to consider an important aspect of the problem, offered an explanation for its decision that runs counter to the evidence before the agency, or is so implausible that it could not be ascribed to a difference in view or the product of agency expertise." Id. at 43 (internal quotations and citations omitted).

  In conducting such a review, the Court should as a general matter defer to the agency's expertise in scientific and technical matters, see Riverkeeper, Inc. v. United States Environmental Protection Agency, 358 F.3d 174, 184 (2d Cir. 2004), and not substitute its judgment for that of the agency, State Farm, 463 U.S. at 43. However, where, as here, the challenged agency action is an agency reversal of a prior action,
a court must satisfy itself that the agency knows it is changing course, has given sound reasons for the change, and has shown that the rule is consistent with the law that gives the agency authority to act. In addition, the agency must consider reasonably obvious alternatives and, if it rejects those alternatives, it must give reasons for the rejection, sufficient to allow for meaningful judicial review. Although there is not a heightened standard of scrutiny, the agency must explain why the original reasons for adopting the rule or policy are no longer dispositive. Even in the absence of cumulative experience, changed circumstances or judicial criticism, an agency is free to change course after reweighing the competing statutory policies. But such a flip-flop must be accompanied by a reasoned explanation of why the new rule effectuates the statute as well as or better than the old rule.
New York Council, Ass'n of Civilian Technicians v. Federal Labor Relations Authority, 757 F.2d 502, 508 (2d Cir. 1985) (internal quotation and citations omitted); see also State of New York Dep't of Social Svcs. v. Shalala, 21 F.3d 485, 492 (2d Cir. 1994) ("An agency's new position is entitled to substantial deference so long as `there appears to have been good reason for the change.'").

  Applying these standards to the rescinding of the indicator dye requirement, plaintiffs contend that, contrary to EPA's conclusion in the Amendment, suitable dyes do in fact exist and were known to the EPA. In support of this assertion, they point to the EPA's statement in one of the original REDs that it "recognizes that many of the formulations currently contain a dye. All registrants may present data demonstrating that the current dye meets the intent of this requirement." Rec. 330. However, an invitation to submit data on suitable dyes is not the same as a conclusion that suitable dyes exist. On the contrary, such submissions may well have shown that none of the proffered dyes was suitable. Indeed, there is evidence in the record that this is what the EPA found. See, e.g., Rec. 2078, 2089, 2257. Similarly, while the EPA stated in the original REDs that "[p]ossible indicator dyes include FD&C Blue No. 1 and FD&C Red No. 3," Rec. 2233, a speculation as to which dyes might serve the intended function is hardly the same as a determination that they do. Plaintiffs' reference to the statement of a California county agricultural commissioner who submitted comments on the safety requirements that "[i]ndicator dyes are already a requirement and have not been a problem here in California," Rec. 2081, is no more compelling, since the California law there referred to prescribes, not the kind of indicator dyes here in issue, which are designed to stain the skin ...

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