Initial to indicate certification as to information on this page

(full text of certification is on page one).

Date

INSTRUCTIONS: Please type or print in ink. Please read carefully the attached instructions and supply the information requested on this form. 

Use additional sheet(s) if necessary.

2. Case # and Name 3. Date and Type of DCI and Number

4. EPA Product 

Registration

5. I wish to cancel 

this product 

registration 

voluntarily

6. Generic Data 7. Product Specific Data

6a. I am claiming a Generic Data 

Exemption because I obtain the 

active ingredient from the source 

EPA registration number listed 

below.

6b. I agree to satisfy Generic Data

Requirements as indicated on the 

attached form entitled 

"Requirements Status and 

Registrant's Response."

7a. My product is an MUP and I 

agree to satisfy the MUP 

requirement on the attached form

entitled "Requirements Status and

Registrant's Response."

7b. My product is an EUP and I 

agree to satisfy the EUP 

requirement on the attached form 

entitled "Requirements Status and 

Registrant's Response."

OMB Approval 2070-0174

1. Company Name and Address

0109 - Terbufos

Chemical # and Name: 105001

Terbufos

02-Feb-2010

GENERIC

ID # GDCI-105001-903

United States Environmental Protection Agency

Washington, D.C. 20460

DATA CALL-IN RESPONSE

Page of 1 1

8. Certification: I certify that the statements made on this form and all attachments are true, accurate, and complete. I acknowledge that any

knowingly false or misleading statement may be punishable by fine, imprisonment or both under applicable law.

Signature and Title of Company's Authorized Representative ______________________________________________________

10. Name of Company

N/A N/A

9. Date

11. Phone Number 
Initial to indicate certification as to information on this page (full text of certification is on page one) 

13. Phone Number

10. Certification: I certify that the statements made on this form and all attachments are true, accurate, and complete. I acknowledge that any 

knowingly false or misleading statement may be punishable by fine, imprisonment or both under applicable law.

12. Name of Company

11. Date

OMB Approval 2070-0174

United States Environmental Protection Agency 

Washington, D.C. 20460

REQUIREMENTS STATUS AND REGISTRANT'S RESPONSE

INSTRUCTIONS: Please type or print in ink. Please read carefully the attached instructions and supply the information requested on this form. Use additional sheet(s) if necessary.

4. Guideline

Requirement

Number

5. Study Title Progress 

Reports

1 2 3

6. Use 

Pattern

7. Test 

Substance

8. Time

Frame 

(Months)

9. Registrant

Response

P

R

O

T

O

C

O

L

1. Company Name and Address 2. Case # and Name 3. Date and Type of DCI and Number

Signature and Title of Company's Authorized Representative _________________________________________________________________

Environmental Fate Data Requirements (Conventional 

Chemical)

Nontarget Plant Protection Data Requirements (Conventional 

Chemical)

Product Chemistry Data Requirements (Conventional 

Chemical)

835.6100

835.6200

850.4100

850.4400

850.5400

830.7050

Terrestrial field dissipation

Aquatic field dissipation

Terrestrial Plant Toxicity (Seedling Emergence)

Aquatic plant toxicity test using Lemna spp. Tiers I 

and II

Algal toxicity, Tiers 1 and II

UV/Visible absorption

0109 - Terbufos

Chemical # and Name: 105001

Terbufos

02-Feb-2010

GENERIC

ID # GDCI-105001-903

A,B

A,B

A,B

A,B

A,B

A,B

TEP

TEP

TEP

EP; PAI; TGAI

EP; PAI; TGAI

EP; PAI; TGAI

24

24

24

12

12

8

Page 1 of 

(2)

(3)

(1, 5, 6)

(4, 5, 6)

(4, 5, 6)

N

N

N

N

N

N

2
Date

OMB Approval 2070-0174

United States Environmental Protection Agency 

Washington, D.C. 20460

REQUIREMENTS STATUS AND REGISTRANT'S RESPONSE

INSTRUCTIONS: Please type or print in ink. Please read carefully the attached instructions and supply the information requested on this form. Use additional sheet(s) if necessary.

4. Guideline

Requirement

Number

5. Study Title Progress 

Reports

1 2 3

6. Use 

Pattern

7. Test 

Substance

8. Time

Frame 

(Months)

9. Registrant

Response

P

R

O

T

O

C

O

L

1. Company Name and Address 2. Case # and Name 3. Date and Type of DCI and Number

Toxicology Data Requirements (Conventional Chemical)

870.7800 Immunotoxicity

0109 - Terbufos

Chemical # and Name: 105001

Terbufos

02-Feb-2010

GENERIC

ID # GDCI-105001-903

A,B TGAI 12

Page 2 of 

N

2
United States Environmental Protection Agency 

Washington, D.C. 20460

FOOTNOTES AND KEY DEFINITIONS FOR GUIDELINE REQUIREMENTS

0109 - Terbufos

GDCI-105001-903

1

2

3

4

5

6

Key: Residue of Concern = Residue of Concern; TEP = Typical End Use Product [TEP]; TGAI = Technical Grade Active Ingredient [TGAI]; TGAI/PAIRA = Technical Grade of the Active Ingredient or Pure Active 

Ingredient, Radio Labelled; TGAI, TEP = Technical Grade of the Active Ingredient or Technical End-Use Product; TGAI/PAI = Technical Grade Active Ingredient, Pure Active Ingredient

The title of this study on the DCI mailed out 2/2/10 reads "Terrestrial plant toxicity, Tier 1 (Seedling Emergence)".

The Agency is not requiring the entire terrestrial field study as defined in Office of Prevention, Pesticides and Toxic Substances (OPPTS) harmonized quidelines, "Terrestrial Field Dissipation" 

835.6100. The particular data the Agency requires is for independent laboratory validations for environmental chemistry analytical methods. These data are necessary to confirm the levels of 

detection and quantitation reported in registrant-prepared validations for residues in soil and to evaluate the submitted environmental fate and ecological effects data for enforcement monitoirng.

The Agency is not requiring the entire aquatic field study as defined in Office of Prevention, Pesticides, and Toxic Substances (OPPTS) harmonized guidelines "Aquatic Field Dissipation" 

835.6200. The particular data the Agency requires is for independant laboratory validations for environmental chemistry analytical methods. These data are necessary to confirm the levels of 

detection and quantitation reported in registrant-prepared validations for residues in water and to evaluate the submitted environmental fate and ecological effects data for enforcement 

monitoring.

Required if the tested aquatic species exhibits a 50 percent or greater detrimental effect in the Tier I study. When Tier II testing is required, the test species should be the species that showed 

detrimental effects in the Tier I testing.

Not required for contained pesticide treatments such as bait boxes and pheromone traps unless adverse effects reports are received by the Agency.

Not required for aquatic residential uses.

Case # and Name:

DCI Number:

Page: 1 of 1

Footnotes: The following footnotes are referenced in column two (5. Study Title) of the Requirements Status and Registrant's Response form. 

These footnotes apply in addition to any test notes included in 40 CFR Part 158 with respect to the particular data requirement.

Use Categories Key:

A - Terrestrial food crop

B - Terrestrial feed crop
United States Environmental Protection Agency 

Washington, D.C. 20460

LIST OF ALL REGISTRANTS SENT THIS DATA CALL-IN NOTICE

Case # and Name: 0109 - Terbufos

Page: 1 of 1

5481 AMVAC CHEMICAL CORPORATION

Co. Nr. Company Name Agent For Company

4695 MACARTHUR COURT, SUITE 1200

Address City ZIP

NEWPORT BEACH 926601706

OMB Approval 2070-0174

State

CA

 DCI Number: GDCI-105001-903
LINKS TO FORMS:

The pesticide registration forms that are listed below can be found at:

http://www.epa.gov/opprd001/forms/

Link to Confidential Statement of Formula and Instructions (Form # 8570-4)

http://www.epa.gov/opprd001/forms/8570-4.pdf

Certification of Attempt to Enter Into an Agreement With Registrants for 

Development of Data (Form # 8570-32)

http://www.epa.gov/opprd001/forms/8570-32.pdf

Certification With Respect to Citation of Data (Form # 8570-34)

http://www.epa.gov/opprd001/forms/8570-34.pdf