2 I NTRODUCTION

This is the Environm ental Protection Agency’s (EPA or the Agency) R egistration R eview C ase Cl osure for halofenozide (registration review docket EPA

- HQ

- OPP

- 2012

- 0231). Halofenozide is an insect growth regulator with an ecdysone agonist mode of action that causes premature lethal molts in susceptible insects. Ecdysone agonists belong to the bisacylhydrazine class of compounds. Halofenozide was registered for use against immature stages of beetle pests (soil dwelling "white grubs") on non

- agricultural uses sites, including airports/landing fields, commercial/industrial lawns, golf course turf, ornamental lawns and turf, ornamental sod farm, recreation area lawns, and resi dential lawns. There are no established tolerances for halofenozide.
The Agency is implementing the registration review program pursuant to Section 3(g) of the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), and will review each registered pesticide every 15 years to determine whether it continues to meet the F IFRA standard for registration. Changes in science, public policy, and pesticide use practices occur over time. The registration review program is intended to make sure that, as the ability to assess risk evolves and as policies and practices change, all registered pesticides continue to meet the statutory standard. The public phase of registration review begins when the initial docket is opened for each case. Informatio n on this program is provided on the Agency’s website 1

. BACKGROUND INFORMATION
The following timeline highlights significant events that have occurred during the registration review of halofenozide

. As is detailed below, prior to the halofenozide registration review docket opening , the Agency received requests to voluntarily cancel all halofenozide pesticide products (technical and end

- use ).

• June 25, 2012

- Dow AgroScience LLC (Dow) requested to voluntarily cancel the sole technical halofenozide registration as well as their eight end

- use products.

• August 6, 2012

- Helena Chemica l Company (Helena) requested to voluntarily cancel its sole halofenozide end

- use product.

• September 26, 2012

- The Halofenozide Preliminary Work Plan (PWP) published in registration review docket (EPA

- HQ

- OPP

- 2012

- 0231) for a 60

- day public comment period. No comments were received.

• September 26, 2012

- Notice of Receipt of Request s to Voluntarily Cancel Pesticide Registrations an d Terminate All Uses published in the Federal Register for a 30

- day public comment period (77 FR 59190) (FRL

- 9362

- 9). No commen ts were received.

• December 21, 2012

- Cancel l ation Order for All Pesticide Registrations and Termination of All Uses for Halofenozide published in the Federal Register (77 FR 75631) (FRL

9373

- 6).
All U.S. halofenozide pesticide registrations were cance lled effective December 21, 2012. Existing sto cks provisions included in the Cancel l ation O rder allow the registrants (Dow

1 http://www.epa.gov/oppsrrd1/registration_review/3 AgroSciences LLC and Helena Chemical Company) to sell and distribute halofenozide produ cts until December 23, 2013 (EPA Registration Numbers 038167

- 0029; 062719

- 0470,

- 0471,

- 0472,

- 0473,

- 047 4,

- 0475,

- 0476,

- 0498,

- 0490 ). Thereafter, the registrants are prohibited from selling or distributing products listed in Table 1 of Unit II. of the C ancel l ation O rder, except for export in acco rdance with FIFRA section 17 or for proper disposal. Persons other than the registrants may continue to sell, distribute, or use existing stocks of cancel l ed products until supplies are exhausted, provided that such sale, distribution, or use is consisten t with the terms of the previously approved labeling on, or that accompanied, the canceled products.
Copies of the Notice of Receipt of Requests to Voluntary Cancel all Products and the Cance l lation Order are in the halofenozide registration review docket

. REGISTRATION REVIEW CASE CLOSURE
As stated in the halofenozide PWP, prior to the docket opening , the registrants for all of the then

registered halofenozide products submitted voluntary requests to cancel all halofenozide product registrat ions. Howe ver, until the cancellation of all products was effective, the Agency anticipated that assessments and data identified in the PWP would be needed in support of registration review.

F ollowing the publication of and the comment period for the PWP , all U.S. halofenozide pe sticide registrations were cancelled effective December 21, 2012. The existing stocks sales and distribution deadline included in the December 21, 2012 cancellation order ensure that halofenozide sale, distribution, and use will decline an d then cease entirely in the United States in the futu re. Although a Reregistration Eligibility Decision (RED) was not conducted for halofenozide (because it was first registered after November 1984 and not subject to reregistration ) , the Ag ency believes that existing stocks of halofenozide products may be used until depleted without causing unreasonable risk to human health and the environment. Due to the cance l lation of all halof enozide products in the U.S. , updated human health and ecological risk asse ssments and additional data are no longer needed in support of registration review

. Pursuant to 40 CFR 155.42 (c) , which provides that the Agency “will close a registration review case if all products in the case are canceled,” t he Agency is closing the registration review case for halofenozide ; and thus, concludin g registration review o f halofenozide

.