Hand Delivered and via Email

October 13, 2015

MONSANTO COMPANY

1300 I (Eye) Street, NW

Suite 450 East

Washington, D.C. 20005

http://www.monsanto.com

Document Processing Desk (VOLCAN)

Office of Pesticide Programs 

U.S. Environmental Protection Agency

One Potomac Yard

2777 South Crystal Drive, Room S4900

Arlington, VA 22202-4501

Attention: Mr. Reuben Baris (7505P)

Product Manager, Team 25

Subject: Request for Voluntary Cancellation under FIFRA 6(f) of Alachlor Registrations

Dear Mr. Baris,

With this letter, Monsanto is hereby requesting voluntary cancellation of alachlor under FIFRA Section 

6(f) without prejudice to future regulatory filings or registration requests. According to our records, 

Monsanto is the only registrant of this active ingredient. 

Appendix I to this letter contains a list of Monsanto’s active registrations, including distributor 

supplemental registrations that include alachlor, which are subject to this voluntary cancellation request.

Most importantly, Monsanto stands by the safe use of all our products, including our alachlor-based 

herbicides. Thus we want to emphasize, that this voluntary cancellation request is based simply on 

changes in Monsanto’s commercial business plans and assessment of the marketplace in the United States. 

Despite the long history of the safe use of alachlor-based products and their benefits for effective weed 

control, the demand by U.S. farmers for these products has been steadily decreasing over the past several 

years. Monsanto is no longer producing or marketing in the U.S. any of the alachlor-containing end-use 

registrations listed in Appendix I. Given this, Monsanto no longer wishes to support the registration of 

alachlor or to support it in the upcoming Registration Review process. 

In mid-2014, Monsanto initiated U.S. state discontinuance of our alachlor end-use products. The last time 

Monsanto produced any alachlor end-use products for the U.S. market was 2013, and we are working to 

deplete our current inventories. To facilitate this process we are requesting that the Agency grant 12 

months from the date of the final cancellation order to allow for sale of existing stocks of the end-use 

product registrations listed in Appendix I. 

In addition, Monsanto wishes to waive the 180-day comment period associated with the publication of 

this request in the Federal Register to a 30-day comment period. 

Also, given that alachlor is registered in a number of countries outside the United States, Monsanto is 

requesting, following the date of the final cancellation order, that the current tolerances at 40 CFR 
October 13, 2015 Voluntary Cancellation Request – Alachlor Registrations Page 2 of 3

180.249 remain in the regulations to cover potential residues in treated commodities that may be imported 

into the U.S.

On a final related note, we want the Agency to be aware that Monsanto will continue to manufacture 

alachlor and a number of alachlor-containing end-use formulations at our production facility in Muscatine, 

Iowa, for export only to customers outside the U.S., in accordance with FIFRA section 17.

If you have any questions, please feel free to contact me at (314) 694-8890 or by email at 

annette.m.kirk@monsanto.com, or James Nyangulu in our Washington, DC office at (202) 383-2866 or at 

james.m.nyangulu@monsanto.com.

Sincerely,

 

Annette M. Kirk

Regulatory Affairs Manager

cc: Kelly Sherman / EPA OPP PRD, Branch Chief, RMIB III

 J.M. Nyangulu / Monsanto
October 13, 2015 Voluntary Cancellation Request – Alachlor Registrations Page 3 of 3

APPENDIX I

The following are the active registrations including distributor supplemental registrations that include 

alachlor that are subject to this voluntary cancellation request:

PRODUCT NAME NAME STATUS EPA REG NUMBER

LASSO 94% STABILIZED 

TECHNICAL 

PRIMARY 524-316 

LASSO HERBICIDE PRIMARY 524-314 

MIRAGE DISTRIBUTOR 524-314-534 

SILHOUETTE DISTRIBUTOR 524-314-912 

CONFIDENCE DISTRIBUTOR 524-314-1381 

CONFIDENCE DISTRIBUTOR 524-314-1381 

GUIDE DISTRIBUTOR 524-314-2993 

JUDGE DISTRIBUTOR 524-314-9779 

MUSCLE DISTRIBUTOR 524-314-10107 

SADDLE DISTRIBUTOR 524-314-11773 

RULER DISTRIBUTOR 524-314-33270 

STALL DISTRIBUTOR 524-314-34704 

ARENA DISTRIBUTOR 524-314-55765 

GUIDE DISTRIBUTOR 524-314-55765 

ALACHLOR 4EC DISTRIBUTOR 524-314-51036 

LARIAT HERBICIDE PRIMARY 524-329 

MICRO-TECH HERBICIDE PRIMARY 524-344 

STALL MT DISTRIBUTOR 524-344-34704 

ARENA ME DISTRIBUTOR 524-344-55765 

CONFIDENCE MT DISTRIBUTOR 524-344-1381 

JUDGE MT DISTRIBUTOR 524-344-9779 

BULLET HERBICIDE PRIMARY 524-418