UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

WASHINGTON, D.C.  20460

	OFFICE OF PREVENTION, PESTICIDE

	AND TOXIC SUBSTANCES

  SEQ CHAPTER \h \r 1 MEMORANDUM

Date:  03-MAR-2010

SUBJECT:	Difenoconazole.  The Need for Additional Independent Laboratory
Validation (ILV) Information for the Livestock Enforcement Method REM
147.07.

PC Code:  128847	DP Barcodes:  D374898

Decision Nos.:  403560	Registration Nos.:	NA

Petition Nos.:  PP#8F7482 and PP#6F7115	Regulatory Action:	NA

Risk Assessment Type:  NA	Case No.: NA

TXR No.:  NA	CAS No.:  119446-68-3

MRID No.:  None	40 CFR:  180.475

	Ver.Apr.08

FROM:	Bonnie Cropp-Kohlligian, Environmental Scientist

		Risk Assessment Branch 4

		Health Effects Division (7509P)  SEQ CHAPTER \h \r 1 		

		

THROUGH:	Susan V. Hummel, Chemist/Senior Scientist

		Risk Assessment Branch 4

		Health Effects Division (7509P)

	

TO:		Rosemary Kearns/Tony Kish (RM 22)

		Fungicide Branch

		Registration Division (7505P)

Executive Summary

In previous residue chemistry reviews (DP# 340379, 8/9/07, W. Wassell
and M. Sahafeyan and, most recently, DP#361054 and DP#362648, 9/17/09,
B. Cropp-Kohlligian), HED has required additional information concerning
the ILV study (MRID 46950221) conducted for the livestock enforcement
method REM 147.07.  HED has concluded that this information is not
needed based on the method validation conducted by the Analytical
Chemistry Branch (ACB memo from C. Stafford, ACB Project # B07-26, dated
10/29/07) which found that the ILV study data submitted for method REM
147.07 (MRID 46950221) are acceptable and indicate that the method
performance is reproducible.  No additional information concerning the
ILV study (MRID 46950221) for the livestock enforcement method, REM
147.07, is required.  

References

DP#:	340379

Subject:	PP#6F7115; Difenoconazole.  Petition for Establishment of
Tolerances on Fruiting Vegetables, Pome Fruit, Sugar Beets, Tuberous and
Corm Vegetables, and Imported Papaya.  Summary of Analytical Chemistry
and Residue Data.

From:	W. Wassell/M. Sahafeyan

To:	D. Rosenblatt/S. Brothers

Dated:	8/9/07

MRIDs:	46950215-46950237

DP#:	None (ACB memo)

Subject:	  SEQ CHAPTER \h \r 1 Review of Proposed Tolerance Enforcement
Method for Difenoconazole.  ACB Project # B07-26.

From:	C. Stafford

To:	D. Vogel

Dated:	10/29/07

MRIDs:	46950219-46950221

  SEQ CHAPTER \h \r 1 DP#s:		D361054 and D362648

Subject:	PP#8F7482; Difenoconazole.  Application for Amended Section 3
Registration to Add Uses on Bulb Vegetables, Brassica Leafy Vegetables,
Cucurbit Vegetables, Citrus Fruits, Grapes, Pistachios, and Tree Nuts. 
Submission of Residue Analytical Methods Data in Response to DP#340379. 
Summary of Analytical Chemistry and Residue Data.

From:		B. Cropp-Kohlligian

To:		R. Kearns/T. Kish

Dated:		17-SEP-2009

MRIDs:	47648604 and 47648605 and 47586101-47586107

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