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Table of Contents

02.03.03 - Idaho Department of Agriculture Rules Governing Pesticide and Chemigation Use and Application

000. Legal Authority. ................................................................................................. 3

001. Title And Scope. ................................................................................................ 3

002. Written Interpretations. ...................................................................................... 3

003. Administrative Appeal. ...................................................................................... 3

004. Definitions. ........................................................................................................ 3

005. Findings. ........................................................................................................... 5

006. Mailing And Physical Addresses, Telephone, And Fax Numbers And Office 

Hours. ............................................................................................................. 5

007. -- 049. (Reserved). ............................................................................................. 5

050. Private Applicator Licensing. ............................................................................. 5

051. -- 099. (Reserved). ............................................................................................. 7

100. Licensing Professional Applicators And Pesticide Dealers. .............................. 7

101. Registration And Licensing Requirements For Use Of The LPC. ................... 11

102. Restrictions And Penalties. ............................................................................. 14

103. -- 149. (Reserved). ........................................................................................... 14

150. Records Requirements. .................................................................................. 14

151. -- 199. (Reserved). ........................................................................................... 16

200. Fees. ............................................................................................................... 16

201. -- 249. (Reserved). ........................................................................................... 16

250. Financial Responsibility. ................................................................................. 16

251. -- 299. (Reserved). ........................................................................................... 17

300. Deviations From Pesticide Labels And Labeling. ............................................ 17

301. -- 309. (Reserved). ........................................................................................... 17

310. Low-flying Prohibitions. ................................................................................... 17

311. -- 319. (Reserved). ........................................................................................... 17

320. Wind Velocity Restrictions. ............................................................................. 17

321. Change Of License Status. ............................................................................. 18

322. (Reserved). ...................................................................................................... 18

323. Pesticide-Fertilizer Mix Restrictions. ............................................................... 18

324. Experimental Permits. ..................................................................................... 18

325. -- 399. (Reserved). ........................................................................................... 19

400. Restrictions To Protect Pollinators. ................................................................. 19

401. -- 449. (Reserved). ........................................................................................... 19

450. Storage Of Pesticide Containers. .................................................................... 19

451. -- 499. (Reserved). ........................................................................................... 20

500. Non-domestic Pesticides. ............................................................................... 20

501. -- 549. (Reserved). ........................................................................................... 20

550. Phenoxy Herbicide Restrictions. ..................................................................... 21

551. -- 599. (Reserved). ........................................................................................... 21

600. Application Near Hazard Areas. ...................................................................... 21

601. Microencapsulated Methyl Parathion Restriction. ........................................... 21
Table of Contents (cont’d)

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602. -- 799. (Reserved). ........................................................................................... 22

800. Pesticide Use On Alfalfa Seed, Carrot Seed, Onion Seed, Radish Seed, 

And Clover Seed. ......................................................................................... 22

801. -- 849. (Reserved). ........................................................................................... 22

850. Unusable Pesticides Collection And Disposal. ............................................... 22

851. -- 960. (Reserved). ........................................................................................... 24

961. General Chemigation Requirements. .............................................................. 24

962. Irrigation Systems. .......................................................................................... 24

963. Chemical Injection Line Shut Down (System Interlock). ................................. 26

964. Injection Line Check Valve. ............................................................................. 28

965. Chemical Injection System. ............................................................................. 28

966. Irrigation Line Check Valve. ............................................................................ 28

967. Gooseneck Pipe Loop, Downhill And Over-A-Hill. .......................................... 29

968. Vacuum Relief Valve Or Combination Air And Vacuum Relief Valve. ............ 29

969. Inspection Port. ............................................................................................... 30

970. Automatic Low Pressure Drain. ...................................................................... 30

971. Variances. ....................................................................................................... 30

972. -- 999. (Reserved). ........................................................................................... 30
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IDAPA 02

TITLE 03

CHAPTER 03

02.03.03 - IDAHO DEPARTMENT OF AGRICULTURE RULES GOVERNING 

PESTICIDE AND CHEMIGATION USE AND APPLICATION

000. LEGAL AUTHORITY.

This chapter is adopted under the legal authority of Section 22-3421, Idaho Code. (3-23-98)

001. TITLE AND SCOPE.

01. Title. The title of this chapter is IDAPA 02.03.03, “Idaho Department of Agriculture Rules 

Governing Pesticide and Chemigation Use and Application.” (4-5-00)

02. Scope. This chapter has the following scope: to govern the use and application of pesticides; 

licensing of pesticide applicators and registration of pesticides for use in Idaho; registration and licensing 

requirements for use of the Livestock Protection Collar; testing and recertification of licensees; record keeping 

requirements; financial responsibilities; aerial applications of pesticides; wind restrictions; pesticide/fertilizer mix 

restrictions; experimental use permits; restrictions to protect pollinators; storage of pesticide containers; nondomestic pesticides; phenoxy herbicide restrictions; application of pesticides near hazard areas; microencapsulated 

methyl parathion restrictions; daminozide (Alar) restrictions; pesticide use on alfalfa, carrot, onion, radish, or clover 

seed; unusable pesticides collection and disposal; and to govern licensing and responsibilities for chemigation; 

signage for chemical usage; shut down requirements; pressure switch, chemical injection, metering pump, system 

interlock requirements, and wind speed precautions; irrigation system connections; flood, basin, furrow, border 

chemigation; sprinkler, drip chemigation; anti-pollution devices; irrigation line check valve model certification; use 

of Anhydrous Ammonia; and to include variances. (4-5-00)

002. WRITTEN INTERPRETATIONS.

There are no written interpretations of these rules. (3-20-97)

003. ADMINISTRATIVE APPEAL.

There is no provision for administrative appeal before the Idaho Department of Agriculture under this chapter. 

Hearing and appeal rights are pursuant to Title 67, Chapter 52, Idaho Code. (3-20-97)

004. DEFINITIONS.

The Idaho Department of Agriculture adopts the definitions set forth in Section 22-3401, Idaho Code, and the 

following definitions: (3-20-97)

01. Air Gap. A physical separation between the free flowing discharge end of a domestic water supply 

system pipeline and an open or non-pressure receiving vessel. (4-5-00)

02. Basin Irrigation. Irrigation by flooding areas of level land surrounded by dikes. (4-5-00)

03. Border Irrigation. Irrigation by flooding strips of land, rectangular in shape and cross leveled, 

bordered by dikes. (4-5-00)

04. Certification. Passing one (1) or more examinations, to initially demonstrate an applicant’s 

competence, as required by the licensing provisions of this act, in order to use or distribute pesticides, or to act as a 

pesticide consultant. (3-20-97)

05. Check Valve. A certified valve designed and constructed to close a water supply pipeline, chemical 

injection line, or other conduit in a chemigation system to prevent reverse flow in that line. (4-5-00)

06. Chemigator. Any person engaged in the application of chemicals through any type of irrigation 

system. (4-5-00)

07. Cross-Connection. Any connection that may have chemical injected or introduced into the 
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domestic water supply system and has the potential of or is connected to the domestic water supply system. (4-5-00)

08. Demonstration and Research. The use of restricted use pesticides to demonstrate the action of the 

pesticide or conduct research. (3-20-97)

09. Domestic Water Supply System. Any system providing water for human use. (4-5-00)

10. Drip Irrigation. A method of microirrigation wherein water is applied as drops or small streams 

through emitters. (4-5-00)

11. Flood Irrigation. Method of irrigation where water is applied to the soil surface without flow 

controls, such as furrows, borders or corrugations. (4-5-00)

12. Flow Rate. The weight or volume of flowable material per unit of time. (4-5-00)

13. Furrow Irrigation. Method of surface irrigation where the water is supplied to small ditches or 

furrows for guiding the water across the field. (4-5-00)

14. Hazard Area. Cities, towns, subdivisions or densely populated areas. (3-20-97)

15. High Volatile Esters. Formulations of 2,4-D which contain methyl, ethyl, butyl, isopropyl, 

octylamyl and pentyl esters. (3-20-97)

16. Injection Pump. A pump that uses a gear, rotary, piston or diaphragm to develop the pressures 

exceeding the irrigation system pressure to inject a chemical. (4-5-00)

17. Inspection Port. An orifice or other viewing device from which the low pressure drain and check 

valve may be observed. (4-5-00)

18. Low Volatile Esters. Formulations of 2,4-D; 2,4-DP; MCPA and MCPB which contain 

butoxyethanol, propylene glycol, tetrahydrofurfuryl, propylene glycol butyl ether, butoxy propyl, ethylhexyl and 

isoctyl esters. (3-20-97)

19. Mixer-Loader. Any person who works under the supervision of a professional applicator in the 

mixing and loading of pesticides to prepare for, but not actually make, applications. (3-20-97)

20. Pressure Switch. A device which will stop the chemical injection pump when the water pressure 

decreases to the point where chemical distribution is adversely affected. (4-5-00)

21. Recertification. The requalification of a certified person through seminar attendance over a set 

period of time, or taking an examination at the end of a set period of time, to ensure that the person continues to meet 

the requirements of changing technology and maintains competence. (3-20-97)

22. Reduced Pressure Principle Backflow Prevention Assembly (RP). An assembly containing two 

(2) independently acting approved check valves together with a hydraulically operating, mechanically independent 

pressure differential relief valve located between the check valves and at the same time below the first check valve. 

The unit shall include properly located resilient seated test cocks and tightly closing resilient seated test cocks and 

tightly closing resilient seated shutoff valves at each end of the assembly. (4-5-00)

23. Seminar. Any Department-approved meeting or activity convened for the purpose of presenting 

pesticide recertification information. (3-20-97)

24. Sprinkler Irrigation. Method of irrigation in which the water is sprayed, or sprinkled, through the 

air to the ground surface. (4-5-00)

25. System Interlock. Safety equipment used to ensure that a chemical injection pump will stop if the 

irrigation pumping plant stops to prevent the entire chemical mixture from empyting from the supply tank into the 
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irrigation pipeline. The safety equipment may also be used to shut down the irrigation system if the injection system 

fails. (4-5-00)

26. Vacuum Relief Valve. A device to automatically relieve or break a vacuum. (4-5-00)

27. Venturi. A differential pressure injector that operates on a pressure difference between the inlet and 

outlet of the injector and creates a vacuum inside the body, which results in suction through the suction port. (4-5-00)

28. Venturi Injection System. A chemical injection system which operates with a Venturi using the 

suction from the Venturi that can be used to inject and mix chemicals into the water. (4-5-00)

29. Working Pressure. The internal operating pressure of a vessel, tank or piping used to hold or 

transport liquid. (4-5-00)

30. Waters of the State. Any surface waters such as canals, ditches, laterals, lakes, streams, or rivers.

(4-5-00)

005. FINDINGS.

These rules are promulgated pursuant to Section 67-5226, Idaho Code, in compliance with the deadlines in the 

governing law, Title 22, Chapter 34, Idaho Code. The rule changes are necessitated by the passage of H.B. 99 in the 

1999 legislative session combining the Idaho Pesticide and Chemigation Laws. These rules will combine IDAPA 

02.03.03, “Idaho Department of Agriculture Rules Governing Pesticide Use and Application,” and IDAPA 02.03.04, 

“Rules Governing Chemigation,” and name the combined rule IDAPA 02.03.03, “Idaho Department of Agriculture 

Rules Governing Pesticide and Chemigation Use and Application.” The existing Chemigation rules (IDAPA 

02.03.04, “Rules Governing Chemigation”) will be repealed in their entirety. In addition, the rule adds two (2) crops 

to the list of non-food crops; provides for consistent licensing by issuing two (2) year Pesticide Dealer licenses so all 

pesticide licenses will be effective for two (2) years; revises the aquatic weed applicator category to more accurately 

reflect activities in this licensing category; and the livestock protection collar rule changes are incorporated pursuant 

to SCR 115. (4-5-00)

006. MAILING AND PHYSICAL ADDRESSES, TELEPHONE, AND FAX NUMBERS AND OFFICE 

HOURS.

01. Office Address. The central office of the agency is in Boise, Idaho. The address is the Idaho State 

Department of Agriculture, 2270 Old Penitentiary Road, Boise, Idaho, 83712-0790. (3-30-01)

02. Mailing Address. The mailing address for the central office is P.O. Box 790, Boise, Idaho 83701.

(3-30-01)

03. Telephone. The telephone number of the central office is (208) 332-8500. (3-30-01)

04. Fax. The fax number of the central office is (208) 334-2170. (3-30-01)

05. Office Hours. Office hours of the central office are 8 a.m. to 5 p.m., Mountain Time, Monday 

through Friday, except holidays designated by the state of Idaho. (3-30-01)

007. -- 049. (RESERVED).

050. PRIVATE APPLICATOR LICENSING.

01. Private Applicator's License. Applicants who wish to obtain a private applicator’s license shall:

(3-20-97)

a. Fill out an application prescribed by the Department. (3-20-97)

b. Take an examination based on the Environmental Protection Agency (EPA) core manual and score 

a minimum of seventy percent (70%). The examination procedure shall be the same as for professional applicators 
IDAHO ADMINISTRATIVE CODE IDAPA 02.03.03 - Rules Governing Pesticide

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(Subsection 100.03), except private applicators shall not be assessed an examination fee. (3-20-97)

c. Private applicators shall be certified and licensed in one or both of the following categories:

(3-20-97)

i. Restricted Use Pesticide (RU). For persons who use or supervise the use of restricted use pesticides 

to produce agricultural commodities or forest crops on land they or their employer(s) own(s) or operate(s). (3-20-97)

ii. Chemigation (CH). For persons who apply chemicals through irrigation systems on land they or 

their employer(s) own(s) or operate(s). (3-20-97)

d. Non-reading applicators may be certified to purchase and apply a single restricted use pesticide 

when they have demonstrated their competence in the safe and proper use of such pesticide to the Director or other 

designated agent. (3-20-97)

02. Recertification. In order for a private applicator’s license to be renewed, the license holder must 

complete the recertification provisions of this section. Beginning July 1, 1996, licenses belonging to private 

applicators with last names beginning with A through L, inclusive, shall expire on the last day of the month listed on 

the chart in Subsection 050.02.a. in every odd-numbered year, and licenses belonging to private applicators with last 

names beginning with M through Z, inclusive, shall expire on the last day of the month listed on the chart in 

Subsection 050.02.a., in every even-numbered year. The recertification period shall be concurrent with the licensing 

period. Those persons who are currently licensed as a private applicator or chemigator on June 30, 1996, shall be 

reissued a private applicator license with the appropriate categories. Those persons who are currently licensed as a 

private applicator or chemigator on June 30, 1996, shall be grandfathered into the licensing schedule at Subsection 

050.02.a. Any person with less than thirteen (13) months in the initial licensing period shall not be required to obtain 

recertification credits for the initial period. Upon issuance of the replacement license, the previous license shall be 

null and void. Any private applicator license without an expiration date shall be null and void on December 31, 1996. 

Recertification and relicensing may be accomplished by complying with either Subsection 050.02.b. or 050.02.c.

(3-23-98)

a. Licensing schedule.

(3-20-97)

b. A person shall accumulate recertification credits by attending Department-accredited pesticide 

instruction seminars. (3-20-97)

i. A minimum of six (6) credits shall be earned during each recertification period. (3-23-98)

ii. Guidelines for obtaining recertification credits shall be the same as for professional applicators, as 

described in Subsections 100.04.a.ii. through 100.04.a.v. Any credits accumulated beyond the required six (6) in a 

recertification period may not be carried over to the next recertification period. (3-23-98)

iii. Upon earning the recertification credits as described above, a person shall be considered by the 

Department to be recertified and eligible for license renewal for the next licensing period. (3-20-97)

c. A person shall pass the Department’s private applicator recertification examination(s) for all 

categories in which the person intends to license with a minimum score of seventy percent (70%). (3-20-97)

Last Name Month to License

Odd Year Even Year

A-D M-P March

E-H Q-T July

I-L U-Z October
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i. Recertification examinations may be taken by a person beginning the thirteenth (13th) month of the 

license period. (3-20-97)

ii. The examination procedures as outlined in Subsection 100.03 shall be followed, except that an 

examination fee shall not be assessed. (3-20-97)

iii. Upon passing the recertification examinations, a person shall be considered by the Department to 

be recertified and eligible for license renewal for the next licensing period. (3-20-97)

051. -- 099. (RESERVED).

100. LICENSING PROFESSIONAL APPLICATORS AND PESTICIDE DEALERS.

01. Demonstration of Competence. (3-20-97)

a. Professional applicators shall not recommend the application or make an application of any 

pesticide for any purpose, unless they have demonstrated competence for that purpose, which competence must be 

demonstrated by passing Department examinations and becoming licensed in the appropriate categories listed in 

Subsection 100.02. (3-20-97)

b. An applicant shall demonstrate competency in the following areas: (3-20-97)

i. Labels and labeling, including terminology, instructions, format, warnings and symbols. (3-20-97)

ii. Safety factors and procedures, including protective clothing and equipment, first aid, toxicity, 

symptoms of poisoning, storage, handling, transportation and disposal. (3-20-97)

iii. Laws, rules, and regulations governing pesticides. (3-20-97)

iv. Environmental considerations, including the effect of climate and physical or geographical factors 

on pesticides, and the effects of pesticides on the environment, and the animals and plants living in it. (3-20-97)

v. Mixing and loading, including interpretation of labels, safety precautions, compatibility of 

mixtures, and protection of the environment. (3-20-97)

vi. Methods of use or application, including types of equipment, calibration, application techniques, 

and prevention of drift and other types of pesticide migration. (3-20-97)

vii. Pests to be controlled, including identification, damage characteristics, biology and habitat.

(3-20-97)

viii. Types of pesticides, including formulations, mode of action, toxicity, persistence, and hazards of 

use. (3-20-97)

ix. Chemigation practices involving the application of chemicals through irrigation systems, 

calibration, management, and equipment requirements. (4-5-00)

x. For use of the Livestock Protection Collar (LPC), in addition to the requirements of Subsection 

100.01.b.i. through 100.01.b.viii., professional applicators shall have training in and knowledge of the following:

(3-19-99)

(1) Characteristics and habits of predatory animals, and particularly, coyotes. (3-19-99)

(2) Properties of the collars and of Sodium Fluoroacetate (Compound 1080). (3-19-99)

(3) Recordkeeping requirements set forth in Subsection 150.01 that will additionally include a record 
IDAHO ADMINISTRATIVE CODE IDAPA 02.03.03 - Rules Governing Pesticide

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of each animal found poisoned or suspected of having been poisoned as a result of the use of Compound 1080, 

including target and non-target species. (3-19-99)

(4) The requirement for immediate reporting of suspected poisonings of non-target species and 

suspected poisonings of humans or domestic animals by the use of Compound 1080 to the United States 

Environmental Protection Agency (US EPA) and the Idaho State Department of Agriculture (ISDA). (3-19-99)

(5) How to properly dispose of animal remains, vegetation, or soil contaminated by a punctured LPC.

(3-19-99)

(6) Practical treatment of Compound 1080 poisonings in humans and domestic animals. (3-19-99)

(7) Safe handling, attachment, and storage of LPC collars. (3-19-99)

(8) The requirement to post and maintain bilingual (English/Spanish or other second language 

appropriate for the region) signs at logical points of access to areas where LPCs are in use. (3-19-99)

(9) The requirement to perform inspections once every week to ensure that collars in use are accounted 

for, property positioned, and intact. (3-19-99)

(10) Knowledge of alternative controls of predation. (4-5-00)

xi. For use of the LPC, in addition to the requirements of Subsections 100.01.b.i. through 100.01.b.x., 

professional applicators shall have training in and the ability to: (3-19-99)

(1) Recognize potential hazards to humans, domestic animals, and non-target wildlife from the use of 

the LPC. (3-19-99)

(2) Read and understand the labeling specific to the LPC. (3-19-99)

(3) Recognize general symptoms of poisoning by Compound 1080 in humans and domestic animals 

and take appropriate action. (3-19-99)

(4) Recognize where the LPC can be used safely and effectively and, conversely, where alternative 

methods of control would be more appropriate. (3-19-99)

(5) Assess damaged LPCs to determine which can be repaired and which must be disposed of properly.

(3-19-99)

(6) Properly dispose of the LPCs. (3-19-99)

02. Certification. A person shall be certified by passing Department examinations with a minimum of 

seventy percent (70%) in the categories of pesticides they apply. (3-20-97)

a. Professional applicators shall be certified and licensed in one (1) or more of the following 

categories: (3-20-97)

i. Law and Safety (LS). This shall include general knowledge of pesticides including proper use and 

disposal, product characteristics, first aid, labeling, and laws. Certification in this category is required when certifying 

in Subsections 100.02.a.ii. through 100.02.a.ix. (3-20-97)

ii. Agriculture. For persons conducting field crop applications. Agriculture Herbicide (AH). 

Certification in this category shall also certify a person to make herbicide applications in rights-of-way, forests, and 

rangelands. Agriculture Insecticide/Fungicide (AI). Certification in this category shall also certify a person to make 

insecticide/fungicide applications in rights-of-way, forests, and rangelands. Soil Fumigation (SF). (4-5-00)

iii. Forest Environment (FE). For U.S. Forest Service and Bureau of Land Management personnel, 
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contractors, and private industry personnel who control pests in forests and on rangelands. (3-20-97)

iv. Right-of-Way Herbicide (RW). For railroads, highway departments and others, for roadside weed 

control, soil sterilant herbicides, and weed control on public lands (non-crop). Certification in the Agricultural 

Herbicide category shall exempt the applicant from the need to certify in this category. (3-20-97)

v. Public Health Pest (PH). For abatement districts and others controlling mosquitoes and other public 

health pests. (3-20-97)

vi. Livestock Pest Control (LP). For persons treating livestock pests. (3-20-97)

vii. Ornamental Herbicide (OH). For persons conducting outside urban or residential herbicide 

applications, with the exception of soil sterilant applications (see Subsection 100.02.a.iv.). Ornamental Insecticide/

Fungicide (OI). For persons doing outside urban or residential insecticide and fungicide applications, including 

exterior applications to residential, urban or commercial buildings, excluding structural destroying pests (see 

Subsection 100.02.a.ix.). (4-5-00)

viii. General Pest Control Operations (GP). For persons controlling pests in and around residential, 

commercial, or other buildings, excluding structural destroying pests. (3-20-97)

ix. Structural Destroying Pest (SP). For persons involved in the control of pests which destroy wooden 

structures, such as bridges, houses, offices, and warehouses. (3-20-97)

x. General Vertebrate Control (GV). For Wildlife Services (WS) personnel of the United States 

Department of Agriculture-Animal and Plant Health Inspection Service, for controlling vertebrates such as rodents, 

predators, and birds. (4-5-00)

xi. Rodent Control (RC). For rodent districts and others, for the control of field rodents. Certification 

in the General Pest Control category shall exempt the applicant from the need to certify in this category. (3-20-97)

xii. Aquatic Weed and Pest Control (AW). For irrigation districts, canal companies and others, for weed 

and pest control on aquatic sites. (4-5-00)

xiii. Seed Treatment (ST). For persons doing treatments to protect seeds used for plant reproduction.

(3-20-97)

xiv. Commodity Pest Control (CP). For persons controlling pests in stored commodities. (3-20-97)

xv. Potato Cellar Pest Control (PC). For persons who apply sprout inhibitors in potato cellars.

(3-20-97)

xvi. Wood Preservative (WP). For persons who apply wood preservatives. (3-20-97)

xvii. Pest Control Consultant-Statewide (SW). For persons who make recommendations or supply 

technical advice concerning the use of any pesticide for agricultural purposes. (3-20-97)

xviii. Demonstration and Research (DR). For persons who apply or supervise the use of restricted use 

pesticides at no charge to demonstrate the action of the pesticide or conduct research with restricted use pesticides. A 

person shall be eligible to license in this category by passing the Pest Control Consultant examination. (3-20-97)

xix. Chemigation (CH). For persons who apply chemicals through an irrigation system, excluding 

Aquatic Weed and Pest Control applicators (see Subsection 100.02.xii.). (4-5-00)

xx. Livestock Protection Collars (LPC). For use of Livestock Protection Collars (LPC) containing the 

restricted use pesticide Compound 1080 to control predatory coyotes. (3-19-99)

b. Pesticide Dealers shall be certified and licensed in any category listed in Subsection 100.02 that 
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pertains to the types of restricted use pesticides sold or distributed. (3-23-98)

c. Persons with an active license category on June 30, 1996, shall retain said category under the rules 

which became effective on July 1, 1996, until the expiration of the certification period or suspension of the license by 

the Department. (3-23-98)

d. Mixer-Loaders. Effective December 31, 1998, mixer-loader licenses issued by the Department shall 

expire. No person shall act as a mixer-loader for a professional applicator without first obtaining annual training.

(3-23-98)

i. Training shall be conducted and certified by the professional applicator who employs the mixerloader. Certification of training shall be on a form prescribed by the Department and must include the signatures of 

both the mixer-loader and the professional applicator providing the training. (3-23-98)

ii. Training shall include areas relevant to the pesticide mixing and loading operation and instruction 

on the interpretation of pesticide labels, safety precautions, first aid, compatibility of mixtures, and protection of the 

environment. (3-23-98)

iii. Employers of mixer-loaders shall comply with federal and state laws related to hazardous 

occupations and shall provide and ensure the use of personal protective equipment required in the label directions.

(3-23-98)

03. Department Examination Procedures. (3-20-97)

a. Examinations shall be administered by a designated agent. (3-20-97)

b. To pass a Department examination, professional applicators and pesticide dealers shall obtain a 

score of seventy percent (70%) or higher. (3-23-98)

c. Payment of examination fees shall be received by the Idaho Department of Agriculture before 

examination results may be released. (3-20-97)

d. A minimum waiting period of one (1) week shall be required before an applicant may retake an 

examination. (4-6-05)

04. Licensing Periods and Recertification. Beginning August 31, 2000, Pesticide Dealer licenses 

shall expire on August 31, of even numbered years and have a twenty-four (24) month duration. A Pesticide Dealer 

License application form shall accompany each new license or license renewal request. Professional applicator 

licenses shall be renewed by satisfying the recertification provisions of this section. Licenses belonging to 

professional applicators with last names beginning with A through L, inclusive, shall expire on the last day of the year 

in every odd-numbered year, and licenses belonging to professional applicators with last names beginning with M 

through Z, inclusive, shall expire on the last day of the year in every even-numbered year. Any professional 

applicator with less than thirteen (13) months in the licensing period shall not be required to obtain recertification 

credits during the initial licensing period. The recertification period for professional applicators shall be concurrent 

with their two (2) year licensing period. Recertification requirements may be accomplished by complying with either 

Subsection 100.04.a. or 100.04.b. (4-5-00)

a. A person shall accumulate recertification credits by attending Department-accredited pesticide 

instruction seminars. (3-20-97)

i. A minimum of fifteen (15) credits shall be earned by a professional applicator during each 

recertification period. (3-23-98)

ii. A completed request for accreditation of a seminar shall be received by the Department not less 

than thirty (30) days prior to the scheduled seminar. Such a request shall be submitted on a form prescribed by the 

Department. Under exceptional circumstances, as described in writing by the person requesting accreditation, the 

thirty (30) day requirement may be waived. (3-20-97)
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iii. Credit will be given only for those parts of seminars that deal with pesticide subjects as listed in 

Subsection 100.01.b. No credit will be given for training given to persons to prepare them for initial certification.

(3-20-97)

iv. The number of credits assigned in advance for a seminar, or a part of a seminar, shall be tentative, 

and may be revised by the Department if it is later found that the training does not comply with Subsection 

100.04.a.iii. (3-20-97)

v. Effective July 1, 1998, a recertification credit shall be based upon one (1) credit for each one (1) 

hour of instruction, as described in Subsection 100.04.a.iii. Should an applicator’s recertification period include 

credits earned prior to July 1, 1998, those credits based on one hundred fifty (150) minutes of instruction shall be 

converted to three (3) credits for recertification purposes. (3-23-98)

vi. Verification of attendance at a seminar shall be accomplished by validating the attendee’s pesticide 

license, using a stamp, sticker, or other method approved by the Department. A designated agent shall ensure that 

such attendance records are properly completed. Verification of attendance must be submitted with the license 

renewal application. (3-20-97)

vii. If a person has accumulated more than fifteen (15) credits during the recertification period, the 

excess credits may not be carried over to the next recertification period. (3-23-98)

viii. Upon earning the recertification credits as described above, a person shall be considered by the 

Department to be recertified for the next recertification period corresponding with the next issuance of a license.

(3-20-97)

b. A person shall pass the Department’s recertification examinations for all categories in which a 

person intends to license. (3-20-97)

i. Recertification examinations may be taken by a professional applicator beginning the thirteenth 

month of the recertification period. (3-23-98)

ii. The examination procedures as outlined in Subsection 100.03 shall be followed. (3-23-98)

iii. In addition to examinations for categories listed under Subsections 100.02.a.ii. through 

100.02.a.ix., a person must also pass a Law and Safety recertification examination. (3-23-98)

iv. Recertification shall not be achieved by passing an entry-level examination. (3-20-97)

v. Upon passing the recertification examination(s), a person shall be considered by the Department to 

be recertified for the next recertification period. (3-20-97)

c. Any person who fails to accumulate the required recertification credits prior to the expiration date 

of their license shall be required to pass the appropriate recertification examination(s) before being licensed.

(3-20-97)

05. Licensed Professional Applicator. Only a licensed professional applicator shall operate or 

supervise the operation of commercial application equipment by being present during the time of operation.

(3-20-97)

06. Interim Exemption from Pesticide Dealer Licensing and Recordkeeping. Until such time as the 

director promulgates specific rules pertaining to distribution of general use pesticides (GUPs), persons selling only 

GUPs shall not be required to obtain a pesticide dealer license or maintain distribution records of these products.

(3-30-01)

101. REGISTRATION AND LICENSING REQUIREMENTS FOR USE OF THE LPC.
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01. Registration. Use restricted to United States Department of Agriculture, Animal and Plant Health 

Inspection Service, wildlife services (USDA, APHIS, WS) employees, licensing, and recordkeeping requirements for 

the LPC. (3-19-99)

a. Only the USDA, APHIS, WS shall register the LPC. USDA, APHIS, WS shall hereinafter be 

known as the registrant for the purpose of these rules. (3-19-99)

b. The LPC shall be transferred only by the registrant and only to professional applicators who are 

certified in the LC category and who are current employees of USDA, APHIS, WS. (3-19-99)

c. The LPC shall be used only by professional applicators with certification in the LC category who 

are current employees of the USDA, APHIS, WS. (3-19-99)

d. Before obtaining certification and licensing, LC applicants shall receive training and demonstrate 

competency in the areas listed in Subsection 100.01.b.x. and 100.01.b.xi. of these rules and satisfy Section 22-3404, 

Idaho Code. (3-19-99)

e. Only the manufacturer or registrant is authorized to fill collars with Compound 1080. Certified 

professional applicators or any other person shall not fill collars or remove the pesticide from the collars. (4-5-00)

02. Use of the LPC (Compound 1080). (3-19-99)

a. Use of collars shall conform to all applicable federal and state regulations. (3-19-99)

b. Collars shall be used to take coyotes only. (3-19-99)

c. Warning signs shall be posted at all usual points of entry to the area, including any access roads, or 

footpath or other walking route that enters the area. When there are no usual points of entry, signs shall be posted in 

the corners of the area or in any other location affording maximum visibility. (3-19-99)

i. The signs shall remain visible and legible throughout the collar use. (3-19-99)

ii. All warning signs shall be posted and inspected once a week by the certified Wildlife Services 

employee to ensure their continued presence and legibility, and will be removed when all collars are removed and 

accounted for. (3-19-99)

iii. Warning signs shall be at least fourteen (14) inches by sixteen (16) inches with letters at least one 

(1) inch in height. (3-19-99)

iv. All warning signs shall have a background color that contrasts with red. The words “DANGER” 

and “PELIGRO,” plus “PESTICIDES” and “PESTICIDAS,” shall be at the top of the sign, and the words “KEEP 

OUT” and “NO ENTRE” shall be at the bottom of the sign. Letters for all words shall be clearly legible. A circle 

containing an upraised hand on the left and a stern face on the right shall be near the center of the sign. The inside of 

the circle shall be red, except that the hand and a large portion of the face shall be in a shade that contrasts with red. 

The length of the hand shall be at least twice the height of the smallest letters. The length of the face shall be only 

slightly smaller than the hand. (3-19-99)

v. The name of the pesticide (Compound 1080) and the date collars were placed on the sheep or goats 

shall appear on the warning sign. (4-5-00)

d. If a collar is found to have been punctured by a predator attacking a collared animal, a complete 

and intensive search shall be conducted for the predator that punctured the collar. (3-19-99)

i. Disposal of punctured or unserviceable collars and contaminated gloves, clothing, vegetation or 

soil shall be as prescribed by the 1080 LPC label and technical bulletin or through the ISDA pesticide disposal 

program. Disposal of animal remains shall be in accordance with label directions. (4-5-00)
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e. Prior to any intended use or application of the LPCs, the professional applicator shall submit to 

ISDA a written notice of intended use, as prescribed by the ISDA. The notice shall contain the following: (3-19-99)

i. The professional applicator’s license number issued by the ISDA; (3-19-99)

ii. A list of the names and addresses of the owners or persons in charge of the areas to be treated and a 

map of the geographic location of such areas; (3-19-99)

iii. The approximate size of the area where treatment will take place; (3-19-99)

iv. The intended period of use; and (3-19-99)

v. The number of collars to be used. (3-19-99)

f. USDA, APHIS, WS shall accurately keep and maintain the following records and reports: 

(3-19-99)

i. Records of all collars distributed; (3-19-99)

ii. The name and address of each professional applicator receiving the collars; and (3-19-99)

iii. The dates and the number of collars received by each professional applicator. (3-19-99)

iv. These records shall be maintained by USDA, APHIS, WS for a period of three (3) years and shall 

be made available to the ISDA for inspection, duplication, and verification upon request by the ISDA. (3-19-99)

g. The professional applicator shall accurately keep and maintain the following records and reports:

(3-19-99)

i. Any suspected poisoning of humans, threatened or endangered species, domestic animals, or nontarget wild animals shall be reported within seventy-two (72) hours or less to the ISDA and US EPA; (3-19-99)

ii. The name and address of the person on whose property the LPC was used or, if different from the 

property owner, the same information for the person in charge of the area where the collars will be used; (3-19-99)

iii. A map of the geographic location and size of the area in which the LPCs were used; (3-19-99)

iv. A summary report of the date each individual collar was obtained by the professional applicator, 

placed on sheep, punctured or ruptured (along with apparent cause), lost or unrecovered, or removed and put in 

storage, or disposed of through the ISDA Pesticide Disposal Program; (3-19-99)

v. The species, date, and location of each animal found poisoned or suspected of having been 

poisoned as a result of the use of Compound 1080 in LPCs; (3-19-99)

vi. The dates and results of each collar inspection; and (3-19-99)

vii. A written description of any complete and intensive search for missing collars or poisoned animals 

conducted as specified in these rules. (3-19-99)

viii. The records required by this rule shall be maintained by the professional applicator for a period of 

three (3) years and shall be made available to the ISDA for inspection, duplication and verification upon request of 

the ISDA. (3-19-99)

ix. A report of the records required by Subsection 101.02.g. shall be submitted to the ISDA as an 

annual summary report. (4-5-00)

h. Collars shall be used only upon sheep or goats within fenced pastures no larger than two thousand 
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five hundred sixty (2,560) acres (four (4) square miles). Fenced pastures include all pastures that are enclosed by 

livestock fencing. In addition to wire livestock fences, and other man-made fences, such as rock walls, natural 

barriers such as escarpments, lakes, or large rivers may be used as fences, as long as they will prevent escape of sheep 

or goats. Fenced pastures and fences as herein defined shall be referred to elsewhere in this section as “area.” Collars 

shall not be used on unfenced, open range. (4-5-00)

i. All appropriate alternative control methods must be considered before implementing use of the 

LPC. (4-5-00)

j. Each collar in use shall be inspected by the professional applicator once a week to ensure that it is 

properly positioned and unbroken. An inspection report on a form prescribed by the director shall be forwarded to 

ISDA following the conclusion of the project. (4-5-00)

i. If any collared animal is not accounted for in any two (2) consecutive checks, a complete and 

intensive search for the collared animal shall be conducted. (4-5-00)

ii. If more than four (4) LPCs are unaccounted for during any thirty (30) day period, WS employees 

shall remove all LPCs from all animals and terminate their use. Use of collars shall not be resumed until WS 

employees have provided ISDA with a written protocol defining adequate steps they shall take to prevent any losses 

of LPCs. (4-5-00)

k. Intact LPCs containing Compound 1080 shall be stored by USDA, APHIS, WS under lock and key 

in a dry place away from food, feed, domestic animals and corrosive chemicals, and in outbuildings or in outdoor 

storage areas attached to, but separate from, human living quarters. (4-5-00)

102. RESTRICTIONS AND PENALTIES.

Any person who violated or fails to comply with any provision of these rules, or Title 22, Chapter 34, Idaho Code, 

shall be subject to one (1) or more of the following actions. (3-19-99)

01. Revocation, Suspension or Denial to Issue or Renew. Revocation, suspension, or denial to issue 

or renew the license or certification of an applicant, licensee, or certificate holder in accordance with Title 22, 

Chapter 34, Idaho Code, Section 22-3409. (3-19-99)

02. Amendment, Suspension, or Revocation of the LPC Registration. Amendment, suspension, or 

revocation of the LPC registration in accordance with Title 22, Chapter 34, Idaho Code, Section 22-3408. (3-19-99)

03. Imposition of Civil Penalty. Imposition of a civil penalty, in accordance with Title 22, Chapter 34, 

Idaho Code, Section 22-3423. (3-19-99)

04. Initiation or Pursuit of Any Other Action. Initiation or pursuit of any other action of an 

enforcement nature available through Title 22, Chapter 34, Idaho Code. (3-19-99)

103. -- 149. (RESERVED).

150. RECORDS REQUIREMENTS.

01. Applicator Records. Professional applicators shall maintain pesticide application records for three 

(3) years, ready to be inspected, duplicated, or submitted when requested by the Director. The records shall be 

maintained in a location designated by the professional applicator. (4-5-00)

02. Record Contents. Such records shall contain: (3-20-97)

a. The name and address of the owner or operator of each property treated; and (3-20-97)

b. The specific crop, animal, or property treated; and (3-20-97)

c. The location by the address, general legal description (township, range, and section) or latitude/
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longitude of the specific crop, animal, or property treated; and (3-23-98)

d. The size or amount of specific crop, animal, or property treated; and (3-23-98)

e. The trade name or brand name of the pesticide applied; and (3-23-98)

f. The total amount of pesticide applied; and (3-23-98)

g. The dilution applied or rate of application; and (3-23-98)

h. The EPA registration number of the pesticide applied; and (3-23-98)

i. The date of application; and (3-20-97)

j. The time of day when the pesticide is applied; and (3-20-97)

k. The approximate wind velocity; and (3-20-97)

l. The approximate wind direction; and (3-23-98)

m. The full name of the person recommending the pesticide application; and (3-23-98)

n. The full name of the professional applicator applying the pesticide; and (3-23-98)

o. The license number of the professional applicator applying the pesticide; and (3-23-98)

p. Worker protection information exchange, if required by the worker protection standard, prior to 

pesticide application, shall be documented by: (3-30-01)

i. Date of contact; and (3-23-98)

ii. Time of contact; and (3-23-98)

iii. Name of grower or operator contacted. (3-23-98)

03. Pesticide Dealer Records. Pesticide dealers shall maintain restricted use pesticide distribution 

records for three (3) years, ready to be inspected, duplicated, or submitted when requested by the Director. The 

records shall be maintained in a location designated by the pesticide dealer. (3-30-01)

04. Record Contents. Such records shall contain: (3-30-01)

a. The name and address of the person purchasing or receiving the restricted use pesticide (RUP); and

(3-30-01)

b. The certified applicator name, license number, and expiration date of the license for the person 

certified to use the RUP; or (3-30-01)

c. In the case of distribution of a RUP to another pesticide dealer, the name, license number, and 

expiration date of the license of the licensed pesticide dealer. (3-30-01)

d. The brand name and Environmental Protection Agency (EPA) Registration Number for each RUP 

distributed; and (3-30-01)

e. Date of the distribution of each RUP; and (3-30-01)

f. The quantity and size of each RUP container distributed and the total quantity of RUP distributed; 

and (3-30-01)
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g. The pesticide dealer’s name, address, and pesticide dealer license number distributing the RUP.

(3-30-01)

151. -- 199. (RESERVED).

200. FEES.

01. Pesticide Registration. On and after July 1, 2006, one hundred sixty dollars ($160) per product.

(3-30-06)

02. Professional Applicator's License. On and after July 1, 1996, one hundred twenty dollars ($120) 

per licensing period of fourteen (14) months or more, sixty dollars ($60) per licensing period of thirteen (13) months 

or less. (3-20-97)

03. Pesticide Dealer's License. Beginning August 31, 2000, one hundred dollars ($100) per licensing 

period of fourteen (14) months or more, fifty dollars ($50) per licensing period of thirteen (13) months or less. Prior 

to August 31, 2000, fifty dollars ($50) for an annual license or partial year if the license is issued after August 31, 

1999. (4-5-00)

04. Private Applicator's License. A Restricted Use Category, ten dollars ($10); a Chemigation 

Category, twenty dollars ($20); or thirty dollars ($30) for both categories. (3-20-97)

05. Examination Fee per Examination Category. Ten dollars ($10). (3-20-97)

201. -- 249. (RESERVED).

250. FINANCIAL RESPONSIBILITY.

01. Proof of Financial Ability. A professional applicator’s license will not be issued by the 

Department until an applicant submits written proof of financial responsibility by any of the following methods:

(3-20-97)

a. Liability insurance with an insurance company licensed to do business in Idaho and documented on 

a form approved by the Director; or (3-23-98)

b. A bond that is approved by the Director; or (3-20-97)

c. A cash certificate of deposit in escrow with a bank or trust company; or (3-20-97)

d. An annuity; or (3-20-97)

e. An irrevocable letter of credit. (3-20-97)

f. Any certificate of deposit, annuity, or irrevocable letter of credit must be payable to the Director as 

trustee and shall remain on file with the Department until it is released, canceled or discharged by the Director. Any 

certificate of deposit, annuity, or irrevocable letter of credit must maintain a cash value equal to the requirements of 

Subsection 250.02, less any penalty for early withdrawal. Accrued interest upon a certificate of deposit or annuity 

shall be payable to the purchaser of the certificate or annuity. (3-20-97)

g. Under the provisions of this chapter, an irrevocable letter of credit shall not be acceptable unless it 

is issued by a national bank in Idaho or by an Idaho state-chartered bank insured by the federal deposit insurance 

corporation. Under the provisions of this chapter, an annuity shall not be accepted by the Department unless it is 

issued by an insurance company, bank or other financial institution found acceptable by the Director. (3-20-97)

h. Exclusions. Any exclusion to liability insurance, bond, cash certificate of deposit, annuity or 

irrevocable letter of credit coverage shall be listed on a form approved by the Director. (3-19-99)
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02. Minimum Coverage Required. (3-20-97)

a. Professional applicators. (3-20-97)

i. Bodily injury - fifty thousand dollars ($50,000) per person/one hundred thousand dollars 

($100,000) per occurrence. (3-23-98)

ii. Property damage - fifty thousand dollars ($50,000) per occurrence. (3-23-98)

iii. Maximum deductible - five thousand dollars ($5,000). (3-23-98)

iv. All new professional applicator licenses issued on or after September 1, 1997, shall require 

financial responsibility at or exceeding the coverage limits as specified in Subsections 250.02.a.i. and 250.02.a.ii. 

(3-23-98)

v. In order to maintain an existing professional applicator license the coverage limits specified in 

Subsections 250.02.a.i. and 250.02.a.ii. shall be met or exceeded on or before December 31, 1998. (3-23-98)

03. Target Property not Required to Be Covered. The immediate property being treated is not 

required to be covered as prescribed in Subsection 250.02.a.ii. (3-19-99)

04. Cancellation or Reduction. The Department shall be notified by the applicator in writing 

immediately after cancellation or reduction of the financial coverage. (3-23-98)

05. Coverage Waived. Coverage waivers which have been issued prior to September 1, 1997, shall 

remain in effect until the first license expiration date subsequent to September 1, 1997. (3-23-98)

251. -- 299. (RESERVED).

300. DEVIATIONS FROM PESTICIDE LABELS AND LABELING.

Any licensed professional or private applicator may deviate from pesticide label directions for use only as EPA or 

state laws, rules, and regulations permit. (3-20-97)

301. -- 309. (RESERVED).

310. LOW-FLYING PROHIBITIONS.

01. Low-Flying Prohibitions. Aircraft pilots during spray operations are prohibited from turning or 

low-flying: (3-20-97)

a. Over cities, towns, schools, hospitals and densely populated areas unless the pilot obtains an 

agreement in writing for pesticide applications from the authorized agent for the city, town, school, hospital, or 

densely populated area in question; or (3-23-98)

b. Directly over an occupied structure without prior notification by some effective means such as 

daily newspapers, radio, television, telephone, or door-to-door notice. (3-23-98)

02. Restriction. The low-flying restrictions listed in Subsection 310.01 shall only pertain to persons 

other than those persons whose property is to be treated. (3-20-97)

311. -- 319. (RESERVED).

320. WIND VELOCITY RESTRICTIONS.

01. Restrictions. No person shall apply any pesticide in sustained wind conditions exceeding ten (10) 

miles per hour or in wind conditions exceeding product label directions, except as provided in Subsection 320.04.
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(4-5-00)

02. Exceptions. Application of pesticides by injection into application site or by impregnated granules 

shall be made according to label directions. (3-23-98)

03. Approval for Use of Other Application Techniques. Other pesticide application techniques or 

methods may be approved by the Director or his agent on a case-by-case basis. (3-23-98)

04. Chemigation Wind Speed Precautions. Chemicals shall not be applied when wind speed favors 

drift beyond the area intended for treatment or when chemical distribution is adversely affected. (4-5-00)

321. CHANGE OF LICENSE STATUS.

01. Change Notification. Any person who is licensed by this act shall immediately notify the Director, 

in writing, of any change of status of any person or agent so named, or of any change in the business name, 

organization, or any other information shown in the licensing application. (3-20-97)

02. Transferable. Licenses are not transferable. (3-23-98)

322. (RESERVED).

323. PESTICIDE-FERTILIZER MIX RESTRICTIONS.

No person shall distribute, sell, offer for sale, or hold for sale any dry pesticide incorporated in a dry blended bulk 

fertilizer mix. (3-20-97)

324. EXPERIMENTAL PERMITS.

Any person who wishes to obtain an experimental permit to accumulate information necessary to register a pesticide 

for a special local need under Section 22-3402(5), Idaho Code, shall file an application with the Department which 

contains: (3-20-97)

01. Name. The company name. (3-20-97)

02. Applicant. The name, address, and telephone number of the applicant. (3-20-97)

03. Shipment. The proposed date of shipment or proposed shipping period not to exceed one (1) year.

(3-20-97)

04. Active Ingredient. A statement listing the active ingredient. (3-20-97)

05. Quantity Statement. A statement of the approximate quantity to be tested. (3-20-97)

06. Acute Toxicity. Available data or information or reference to available data on the acute toxicity of 

the pesticide. (3-20-97)

07. Statement of Scope. A statement of the scope of the proposed experimental program, including the 

type of pests or organisms involved, the crops and animals for which the pesticide is to be used, the areas where the 

applicant proposes to conduct the program, and when requested by the Director, the results of previous tests.

(3-20-97)

08. Temporary Tolerance. When the pesticide is to be used on food or feed, a temporary tolerance 

must be obtained from the EPA or evidence that the proposed experiment will not result in injury to humans or 

animals, or illegal residues entering the food chain. (3-20-97)

09. Proposed Labeling. Proposed labeling which must bear: (3-20-97)

a. The prominent statement “For Experimental Use Only” on the container label and any labeling that 

accompanies the product. (3-20-97)
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b. An adequate caution or warning statement to protect those who may handle or be exposed to the 

experimental formulation. (3-20-97)

c. The name and address of the applicant for the permit. (3-20-97)

d. The name or designation of the formulation. (3-20-97)

e. Directions for use. (3-20-97)

f. A statement listing the name and percentage of each active ingredient and the total percentage of 

inert ingredients. (3-20-97)

10. Quantity Limit. The Director may limit the quantity of pesticide covered by the permit or make 

such other limitations as he may determine to be necessary for the protection of humans or the environment.

(3-20-97)

11. Experimental Use. A pesticide for experimental use shall not be offered for sale unless a written 

permit has been obtained from the Director. (3-20-97)

325. -- 399. (RESERVED).

400. RESTRICTIONS TO PROTECT POLLINATORS.

01. Bee Restrictions. Any pesticide that is toxic to bees shall not be applied to any agricultural crop 

when such crop is in bloom or when bees are actively foraging on blooming weeds in the crop being sprayed except 

during the period beginning three (3) hours before sunset until three (3) hours after sunrise. (3-30-01)

02. Green Pea Exception. In the counties of Benewah, Bonner, Boundary, Clearwater, Idaho, 

Kootenai, Latah, Lewis, Nez Perce, and Shoshone: Green (white) pea crops may be sprayed or dusted at any time.

(3-20-97)

03. Other Exceptions. Pesticides may be applied at any time to sweet corn for processing, hops, 

potatoes, and beans other than lima beans, subject to all other applicable regulations. (3-20-97)

401. -- 449. (RESERVED).

450. STORAGE OF PESTICIDE CONTAINERS.

01. Protecting Humans and Environment. No person shall handle, transport, display, or distribute 

pesticides in such a manner as to endanger humans and their environment, or to contaminate food, feed, or any other 

product that may be transported, stored, displayed, or distributed with such pesticides. (3-20-97)

02. Storage by Professional Applicators or Pesticide Dealers. Storage of pesticide containers by 

professional applicators and pesticide dealers: (3-20-97)

a. Empty or partially full pesticide containers which contain Class 1 - highly toxic pesticides (LD50 

of 50 or below) and which require the skull and crossbones insignia and the words “Danger - Poison” on the label; 

and Class 2 (moderately toxic) pesticides (LD50 - 500) which carry a “Warning” statement on the label; and Class 3 

(slightly toxic) pesticides (LD50 of 500-5000) and which carry a “Caution” statement on the label, shall be stored in 

one of the following enclosures which when unattended shall be locked to prevent unauthorized persons, livestock or 

animals from gaining entry: (3-20-97)

i. Closed vehicle; (3-20-97)

ii. Closed trailer; (3-20-97)
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iii. Building or room; (3-20-97)

iv. Fenced area with a fence at least six (6) feet high; (3-20-97)

v. Truck or trailer with solid sideracks and secured tailgate at least six (6) feet above ground level.

(3-20-97)

b. Empty or partially full pesticide containers which contain Class 4 pesticides (LD50 over 5000) 

shall be stored in secured storage out of the reach of children in one of the above enclosures. (3-20-97)

c. Warning notices, visible from any direction, shall be posted around all storage areas where partially 

full or empty containers which hold or have held pesticides required to be labeled with the signal words “Warning” or 

“Danger - Poison” are stored. Each warning notice shall be of such size that it is readable at a distance of twenty-five 

(25) feet and be substantially as follows:

“D A N G E R”

“POISON STORAGE AREA

ALL UNAUTHORIZED PERSONS

KEEP OUT”

The notice shall be repeated in an appropriate language other than English when it may be reasonably anticipated that 

persons who do not understand the English language will come to the enclosure. The notice shall also contain the 

name and telephone number of a person to contact in case of an emergency. (3-20-97)

03. Exceptions. The provisions of Subsection 450.02 shall not apply to drums of petroleum oils, lime 

sulfur, and copper sulfate. (3-20-97)

04. Disposal. Any person applying pesticides shall be responsible for the proper disposal of such 

empty containers. (3-20-97)

451. -- 499. (RESERVED).

500. NON-DOMESTIC PESTICIDES.

01. Home and Garden Restrictions. The following listed pesticides shall not be sold to home and 

garden users, nor shall they be applied by professional applicators around any home or garden. These pesticides shall 

be registered only when labeled, distributed, sold or held for sale and use other than home and garden use. (3-20-97)

a. Bidrin (Foliar applications). (3-20-97)

b. Disyston (two point one percent (2.1%) and above). (3-20-97)

c. Guthion (fifteen percent (15%) and above). (3-20-97)

d. Strychnine (one percent (1%) and above). (3-20-97)

e. Zinc Phosphide (two point one percent (2.1%) and above). (3-20-97)

f. All high volatile liquid ester formulations of 2,4-D. (3-20-97)

02. Ester Restriction. Low volatile liquid ester formulations of 2,4-D; 2,4-DP; MCPA and MCPB 

shall not be applied around any home or garden between May 1 and October 1 of any year or at any time when air 

temperature exceeds eighty (80) degrees Fahrenheit. (3-20-97)

501. -- 549. (RESERVED).
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550. PHENOXY HERBICIDE RESTRICTIONS.

01. High Volatile Ester Restrictions. No aircraft pilot shall apply high volatile ester formulations of 

2,4-D: (3-20-97)

a. In Latah, Nez Perce, and Clearwater Counties in Idaho; or (3-20-97)

b. Within five (5) miles of a susceptible crop or hazard area in any other county in Idaho. (3-20-97)

 c. Waiver of the restriction is Subsections 550.01.a. and 550.01.b. may be issued on a project-byproject basis by the Director. (3-20-97)

02. Low Volatile Ester Restrictions. No aircraft pilot shall apply low volatile ester formulations of 

2,4-D; MCPA and MCPB: (3-20-97)

a. In Latah, Nez Perce, and Clearwater Counties in Idaho, unless ambient air temperatures are not 

above or expected to exceed eighty-five (85) degrees fahrenheit within twenty-four (24) hours of the expected 

application time, or (3-30-01)

b. Within one (1) mile of a hazard area in any other county in Idaho. (3-20-97)

c. Waiver of the restriction in Subsection 550.02.a. may be issued on a project-by-project basis by the 

Director. (3-20-97)

03. Hazard Area. Aircraft pilots shall maintain the following spray distances from hazard areas when 

applying amine or acid formulations of 2,4-D; MCPA; MCPB; and Dicamba:

(3-23-98)

04. Airflow and Temperature Inversion Indicators. A continuous smoke column or other device 

satisfactory to the Director shall be employed to indicate to the pilot of any aircraft the direction and velocity of the 

airflow, and indicate a temperature inversion by layering of smoke, at the time and place of application when 

applying any formulation of 2,4-D; MCPA; MCPB and Dicamba. (3-20-97)

05. Other Spraying Equipment. If any aerial applicator wishes to use spraying equipment other than 

the equipment specified, such equipment must be approved by the Director prior to use. (3-20-97)

551. -- 599. (RESERVED).

600. APPLICATION NEAR HAZARD AREAS.

An aircraft pilot shall not apply any pesticide within one-half (1/2) mile of a hazard area unless there is air movement 

away from the hazard area. (3-20-97)

601. MICROENCAPSULATED METHYL PARATHION RESTRICTION.

An aircraft pilot shall not apply microencapsulated methyl parathion within one-half (1/2) mile of any canyon breaks 

or the perimeter thereof, of the Clearwater-Snake River drainage within the boundaries of Latah, Lewis, Clearwater, 

and Nez Perce Counties in Idaho. (3-20-97)

Mean Sustained Wind Velocity Downwind Upwind

0-3 MPH 1/2 mile 600 feet

4-7 MPH 1 mile 200 feet

8-10 MPH 1 mile 50 feet

Over 10 MPH Do not apply Do not apply
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602. -- 799. (RESERVED).

800. PESTICIDE USE ON ALFALFA SEED, CARROT SEED, ONION SEED, RADISH SEED, AND 

CLOVER SEED.

01. Nonfood and Nonfeed Site Conditions. For purposes of pesticide registration, all alfalfa seed, 

carrot seed, onion seed, radish seed, and clover seed crop fields are considered nonfood and nonfeed sites for 

pesticide use and the following conditions shall be met: (4-5-00)

a. No portion of the seed alfalfa, carrot seed, onion seed, radish seed, or seed clover plant, including 

but not limited to seed screenings, green chop, hay, chaff, combine tailings, pellets, meal, whole seed and cracked 

seed, may be grazed, used, or distributed for food or feed purposes. (4-5-00)

b. The seed conditioner shall keep records of individual growers’ alfalfa, carrot, onion, radish, and 

clover seed dirt weight and clean weight for three (3) years and shall furnish the records to the Director forthwith 

upon request. (4-5-00)

c. All seed screenings shall be disposed of at a sanitary landfill, incinerator, or other equivalent 

disposal site or by a procedure approved by the Director. (3-23-98)

d. The seed conditioner shall keep seed screening disposal records for three (3) years from the date of 

disposal and shall furnish the records to the Director forthwith, upon request. Disposal records shall consist of 

documentation from the disposal site and shall show the total weight of disposed screenings and the date of disposal.

(3-20-97)

e. All alfalfa, carrot, onion, radish, or clover seed grown or conditioned in this state shall bear a tag or 

container label which forbids the use of the seed for human consumption or animal feed. (4-5-00)

f. No alfalfa, carrot, onion, radish, or clover seed grown or conditioned in this state shall be 

distributed for human consumption or animal feed. (4-5-00)

g. All portions of the seed alfalfa, seed carrot, seed onion, seed radish, or seed clover plant, including 

but not limited to seed screenings, pellets, meal, whole seed and cracked seed may be composted. All composted 

material may be applied to agricultural crop land as approved by the Director. (4-5-00)

02. Exemption. Alfalfa seed grown for human consumption shall be exempt from the requirements of 

Subsection 800.01 provided: (3-20-97)

a. All pesticides used are labeled for use on alfalfa, and have established residue tolerances which 

allow food or feed use; and (3-20-97)

b. All producers maintain for three (3) years complete records of all pesticides applied as specified in 

Pesticide Use and Application Rules Subsection 150.02. These records shall be ready to be inspected, duplicated, or 

submitted when requested by the Director. (3-20-97)

801. -- 849. (RESERVED).

850. UNUSABLE PESTICIDES COLLECTION AND DISPOSAL.

01. Authority. The Director of the Idaho Department of Agriculture or designated agent may, if 

deemed necessary for the protection of the environment, take possession and dispose of canceled, suspended, or 

otherwise unusable pesticides. (3-20-97)

02. Participant Transfer of Product Ownership. Persons interested in transferring the ownership of 

their unusable pesticide products to the Department shall: (3-20-97)
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a. Preregister the product on a form prescribed by the Department. (3-20-97)

b. Follow all applicable United States Department of Transportation regulations in the handling, 

loading, securing and transporting of their products. (3-20-97)

c. Over-pack all torn or leaky containers to prevent a release of product into the environment during 

transport. (3-20-97)

d. Sign a release, transferring the ownership of the product to the Department. (3-20-97)

e. Comply with all applicable federal, state and local laws, regulations and ordinances. (3-20-97)

03. Department Possession for Disposal. In order to take possession and dispose of unusable 

pesticide products, the Department shall: (3-20-97)

a. Preregister participants in the area where the collection site is located. (3-20-97)

b. Notify preregistered participants of pesticide products approved for collection and disposal.

(3-20-97)

c. Secure appropriate collection site(s) in cooperation with local government and other organizations.

(3-20-97)

d. Obtain an Environmental Protection Agency identification number as a hazardous waste generator.

(3-20-97)

e. Provide and ensure the use of personal protective equipment for Department employees. (3-20-97)

f. Ensure that workers unload chemicals from participant’s vehicle only in an area developed to 

contain possible spills. (3-20-97)

g. Sign a transfer of ownership, releasing the participant of the product. (3-20-97)

h. Transfer the unusable pesticide products as hazardous waste to a hazardous waste contractor(s) for 

transport and disposal. (3-20-97)

i. Comply with all applicable federal, state and local laws, regulations and ordinances. (3-20-97)

04. Contract Transport and Disposal. The contractor(s) providing for the transport and disposal of 

the hazardous waste shall: (3-20-97)

a. Provide a representative to participate in the collection site evaluation and selection process.

(3-20-97)

b. Prepare the selected site collection area in such a manner as to contain possible spills. (3-20-97)

c. Certify to the Department that their employees handling the hazardous waste materials meet 

Occupational Safety and Health Administration safety and training requirements. (3-20-97)

d. Certify to the Department that their employees handling or transporting the hazardous waste 

materials meet United States Department of Transportation training requirements. (3-20-97)

e. Provide and ensure the use of personal protective equipment for their employees during collection 

events. (3-20-97)

f. Overpack the hazardous waste materials as required by the disposal facility and the United States 

Department of Transportation. (3-20-97)
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g. Obtain and provide the Department with written approval for hazardous waste acceptance from the 

treatment, storage and disposal facility prior to the collection. (3-20-97)

h. Provide the manifest forms, labels and markings for the overpacked containers and provide the 

placards for the commercial hazardous waste transport vehicles. (3-20-97)

i. Label, manifest, mark, and placard the load for proper transportation. (3-20-97)

j. Transport hazardous waste materials to the approved disposal site(s). (3-20-97)

k. Certify to the Department that the commercial hazardous waste transporter: (3-20-97)

i. Is registered through the Environmental Protection Agency and possesses an Environmental 

Protection Agency identification number. (3-20-97)

ii. Is registered through the Environmental Protection Agency in each state through which the 

hazardous waste is transported. (3-20-97)

iii. Is registered with the United States Department of Transportation, Research and Special Programs 

Administration to transport hazardous waste. (3-20-97)

iv. Has obtained an Idaho Department of Transportation hazardous waste trip permit and hazardous 

materials endorsement. (3-20-97)

v. Has obtained a satisfactory safety rating from the United States Department of Transportation.

(3-20-97)

l. Perform a final cleanup in such a manner as to ensure that the collection site is returned to its 

original condition. (3-20-97)

m. Provide complete documentation of collections, transportation and disposal to the Department in a 

timely manner. (3-20-97)

n. Comply with all applicable Federal, State and local laws, regulations, and ordinances. (3-20-97)

851. -- 960. (RESERVED).

961. GENERAL CHEMIGATION REQUIREMENTS.

This Section prescribes equipment listing requirements, posting requirements for certain types of pesticides, use of 

pesticide label directions, a prohibition from chemigation over waters of the state. (4-5-00)

01. Chemigation Equipment Standards. Equipment manufacturers shall provide to the Department 

of Agriculture verification that the equipment meets the standards established in these rules. If the equipment meets 

the standards, it shall be placed on the Department's list of approved chemigation equipment. (4-5-00)

02. Posting Requirements. Labels of toxicity category I pesticide products (those with the label signal 

word “DANGER.” allow chemigation on their label and contain posting requirements specific to chemigation) shall 

be posted in accordance with their label. (4-5-00)

03. Pesticides Labeled for Chemigation. The chemigator shall use only pesticides labeled for 

chemigation when chemigating. (4-5-00)

04. Chemigating Over Waters of the State. Chemigating over waters of the state shall be prohibited, 

except for variances allowed in Section 971. (4-5-00)

962. IRRIGATION SYSTEMS. 
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This Section prescribes the equipment required for each type of irrigation system when chemigation is to be used.

(4-5-00)

01. Sprinkler or Drip Irrigation. If chemicals are being chemigated through the sprinkler or drip 

irrigation system, the chemigator shall verify that the system complies with either Subsection 962.01.a. or 962.01.g. 

and shall include all of the additionally specified equipment for each: (4-5-00)

a. Irrigation Line Check Valve Requirement. The system shall contain a functional Irrigation Line 

Check Valve, (Section 966); and (4-5-00)

b. Low Pressure Drain Requirement. The system shall contain an Automatic Low Pressure Drain, 

(Section 970); and (4-5-00)

c. Inspection Port Requirement. The system shall contain an Inspection Port, (Section 969); and

(4-5-00)

d. Vacuum Relief Valve Requirement. The system shall contain a Vacuum Relief Valve or a 

combination Air and Vacuum Relief Valve, (Section 968); and (4-5-00)

e. Chemical Injection System Requirement. The system shall contain a Chemical Injection System, 

(Section 965); and (4-5-00)

f. Chemical Injection Line Shut Down (System Interlock) Requirement. The system shall contain a 

Chemical Injection Line Shut Down (System Interlock), (Section 963); or (4-5-00)

g. Gooseneck Pipe Loop, Downhill and Over-A-Hill Requirement. For surface water impoundments 

the system may use a Gooseneck Pipe Loop, Downhill and Over-A-Hill system rather than the requirements of 

Subsections 962.01.a. through 962.01.f., (Section 967); and (4-5-00)

h. Chemical Injection System Requirement. The system shall contain a Chemical Injection System, 

(Section 965); and (4-5-00)

i. Chemical Injection Line Shut Down (System Interlock) Requirement. The system shall contain a 

Chemical Injection Line Shut Down (System Interlock), (Section 963). (4-5-00)

02. Flood, Basin, Furrow, or Border Irrigation. If a chemical, including anhydrous ammonia, will be 

applied by flood, basin, furrow, or border chemigation through a gravity flow system, the chemigator shall verify that 

the system complies with the following requirements: systems using a gravity flow dispensing system shall meter the 

chemical into the water at the head of the field and downstream of a hydraulic discontinuity such as a drop structure 

or weir box to decrease potential for water source contamination from backflow if water flow stops. (4-5-00)

03. Domestic Water Supply System Cross-Connected for Chemigation. Any irrigation system used 

for chemical application cross-connected to a domestic water supply system shall verify that the system complies 

with either Subsection 962.03.a. or 962.03.d. and shall include all other additionally specified equipment for each;

(4-5-00)

a. Reduced Pressure Principle Backflow Prevention Assembly (RP). The irrigation system shall 

contain a functional reduced pressure backflow preventer assembly (RP); and (4-5-00) 

i. The RP assembly shall be located on the irrigation pipeline between the water supply pump and the 

point of chemical injection, and downstream from any domestic water supply diversion point. (4-5-00)

ii. The purpose of a Reduced Pressure Principle Backflow Prevention Assembly (RP) is to keep 

contaminated water from flowing back into a domestic water supply system when some abnormality in the system 

causes pressure to be temporarily higher in the contaminated part of the system than in the domestic water supply 

system piping. (4-5-00)
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iii. The RP assembly shall have been manufactured in full conformance with the American National 

Standards Institute (ANSI)/American Water Works Association (AWWA) ANSI/WWA C511 Standard for Reduced 

Pressure Principle Backflow Prevention Assemblies established by the AWWA; and have met completely the 

laboratory and field performance specifications of the Foundation for Cross-Connection Control and Hydraulic 

Research of the University of Southern California (USC FCCCHR); or an equivalent, Department-approved testing 

facility. (4-5-00)

b. Chemical Injection System Requirement. The system shall contain a Chemical Injection System, 

(Section 965); and (4-5-00)

c. Chemical Injection Line Shut Down (System Interlock) Requirement. The system shall contain a 

Chemical Injection Line Shut Down (System Interlock), (Section 963); or (4-5-00)

d. Air Gap (AG). The water from the domestic water supply system shall be discharged into a 

reservoir tank prior to the chemical injection. An air gap shall be at least double the diameter of the supply pipe 

measured vertically above the overflow rim of the vessel – in no case less than one (1) inch. Chemical injection shall 

not occur upstream of the air gap; and (4-5-00)

e. Chemical Injection System Requirement. The system shall contain a Chemical Injection System, 

(Section 965); and (4-5-00)

f. Chemical Injection Line Shut Down (System Interlock) Requirement. The system shall contain a 

Chemical Injection Line Shut Down (System Interlock), (Section 963). (4-5-00)

963. CHEMICAL INJECTION LINE SHUT DOWN (SYSTEM INTERLOCK).

In every chemigation system, there shall be a functional system interlock designed and installed to shut down the 

chemical injection unit when chemical distribution is adversely affected. The system interlock shall connect the water 

supply pump and the chemical injection unit or connect the irrigation line pressure switch and the chemical injection 

unit if there is no water supply pump and the system is pressurized. The chemical injection line shall contain one (1) 

of the following options found in Subsections 963.01 through 963.05, to ensure that a chemical injection pump will 

stop if the irrigation pump stops to prevent the entire chemical mixture from emptying from the supply tank into the 

irrigation pipeline: (4-5-00)

01. Electrical Interlock. The electrical interlock shall contain one (1) of the options in Subsections 

963.01.a. through 963.01.d. and shall include all of the additionally specified equipment for each: (4-5-00)

a. Electric Motor-Driven Irrigation Pump or Power Panel: (4-5-00)

i. The electrical controls for the irrigation pump panel or power panel at the pivot or linear shall be 

interlocked with an electric powered chemical injection pump so that if the water pump shuts off or the pressure 

switch shuts off power at the panel, the chemical injection pump shall shut off (it is recommended that the interlock 

also be provided to shut off the irrigation system if the chemical injection pump shuts off); and (4-5-00)

ii. Injection Line Check Valve, (Section 964), shall be installed; and (4-5-00)

iii. In pressurized irrigation systems, the irrigation line or water pump shall include a functional 

pressure switch. (4-5-00)

b. Solenoid Operated Valve. A functional automatic quick-closing check valve and a functional 

normally closed solenoid operated valve connected to the system interlock shall be: (4-5-00)

i. Normally closed; and (4-5-00)

ii. Located on the intake side of the injection pump; and (4-5-00)

iii. Open only when there is adequate pressure in the irrigation line to insure uniform chemical 

distribution; and (4-5-00)
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iv. In pressurized irrigation systems, the irrigation line or water pump shall include a functional 

pressure switch. (4-5-00)

c. A functional automatic quick-closing check valve and a functional normally closed hydraulically 

operated check valve. The hydraulically operated check valve shall be connected to the main water line such that the 

valve only opens when the main water line is adequately pressurized. In addition, in pressurized irrigation systems, 

the irrigation line or water pump shall include a functional pressure switch; or (4-5-00)

d. A functional automatic quick-closing check valve and a functional vacuum relief valve located in 

the chemical injection line between the positive displacement chemical injection pump and the chemical check valve. 

This alternative is appropriate only for those chemigation systems using a positive displacement chemical injection 

pump and is not for use with Venturi injection systems. This valve shall be elevated at least twelve (12) inches above 

the highest fluid level in the chemical supply tank and shall be the highest point in the injection line. The valve shall 

open at six (6) inches water vacuum or less and shall be spring-loaded or otherwise constructed such that it does not 

leak on closing. It shall prevent leakage from the chemical supply tank on system shutdown. The valve shall be 

constructed of chemically resistant materials. In addition, in pressurized irrigation systems, the irrigation line or water 

pump shall include a functional pressure switch. (4-5-00)

02. Mechanical Interlock. The mechanical interlock shall contain one (1) of the options in 

Subsections 963.02.a. or 963.01.b. and shall include all of the additionally specified equipment for each: (4-5-00)

a. Irrigation pumps driven by an internal combustion engine shall be interlocked between the 

chemical injection pump and the irrigation pump by operating the chemical injection equipment from the engine 

electrical system, or an electrical generator driven by the pumping plant power unit: (4-5-00)

i. Injection Line Check Valve, (Section 964), shall be installed; and (4-5-00)

ii. In pressurized irrigation systems, the irrigation line or water pump shall include a functional 

pressure switch; or (4-5-00)

b. Irrigation pumps driven by an internal combustion engine shall be interlocked between the 

chemical injection pump and the irrigation pump by belt from the drive shaft of the irrigation pump or an accessory 

pulley of the engine: and (4-5-00)

i. Injection Line Check Valve, (Section 964), shall be installed; and (4-5-00)

ii. In pressurized irrigation systems, the irrigation line or water pump shall include a functional 

pressure switch. (4-5-00)

03. Hydraulic Interlock. Functional, normally closed, hydraulically operated check valve. The control 

line must be connected to the main water line such that the valve opens only when the main water line is adequately 

pressurized. This valve must prevent leakage from the chemical supply tank on system shutdown. The valve must be 

constructed of chemically resistant materials, such as a Venturi System. (4-5-00)

04. Human Interlock. (4-5-00)

a. A human interlock shall consist of human supervision on-site during the injection of a chemical 

into the irrigation system for one (1) hour or less to shut down the system in case of failure of the injection pump or 

irrigation system; and (4-5-00)

b. Injection Line Check Valve (Section 964) shall be installed; and (4-5-00)

c. In pressurized irrigation systems, the irrigation line or water pump shall include a functional 

pressure switch. (4-5-00)

05. Other Approved Option. Any other option approved by the Director. (4-5-00)
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964. INJECTION LINE CHECK VALVE.

01. Injection Line Check Valve. A functional, spring-loaded injection line check valve with a 

minimum of ten (10) pounds per square inch (psi) opening (cracking) pressure plus one (1) psi per one (1) foot of 

elevation between the chemical supply tank and the point of chemical injection and shall be: (4-5-00)

a. Located between the chemical injection pump and the point of chemical injection into the irrigation 

line; and (4-5-00)

b. Made of chemically resistant material; and (4-5-00)

c. Designed to prevent irrigation water under operating pressure from entering the chemical injection 

line; and (4-5-00)

d. Designed to prevent leakage from the chemical supply tank on system shut down; and (4-5-00)

02. A Substitute System. The injection line check valve shall be a substitute for both the solenoidoperated valve and the functional, automatic, quick closing check valve in the chemical injection line. (4-5-00)

965. CHEMICAL INJECTION SYSTEM.

All chemical injection systems, except for flood, basin, furrow, or border chemigation through a gravity flow system, 

shall use: (4-5-00)

01. Metering Pump. A metering pump such as a positive displacement injection pump effectively 

designed and constructed of materials that are compatible with chemicals and capable of being fitted with a system 

interlock; or (4-5-00)

02. Venturi System. Venturi systems including those inserted directly into the main water line, those 

installed in a bypass system, and those bypass systems boosted with an auxiliary water pump. Booster or auxiliary 

water pumps shall be connected with the system interlock such that they are automatically shut off when the main line 

irrigation pump stops, or in cases where there is no main line irrigation pump, when the water pressure decreases to 

the point where pesticide distribution is adversely affected. Venturies shall be constructed of chemically resistant 

materials. The line from the chemical supply tank to the Venturi shall contain a functional, automatic, quick closing 

check valve to prevent the flow of liquid back toward the chemical supply tank. This valve shall be located 

immediately adjacent to the Venturi chemical inlet. This same supply line shall also contain either a functional 

normally closed solenoid-operated valve connected to the system interlock or a functional normally closed 

hydraulically operated valve which opens only when the main water line is adequately pressurized. In bypass systems 

as an option to placing both valves in the line from the chemical supply tank, the check valve may be installed in the 

bypass immediately upstream of the Venturi water inlet and either the normally closed solenoid or hydraulically 

operated valve may be installed immediately downstream of the Venturi water outlet. (4-5-00)

966. IRRIGATION LINE CHECK VALVE.

01. Construction. Construction shall: (4-5-00)

a. Consist of at least a single check valve; (4-5-00)

b. Be of heavy duty construction with all materials resistant to corrosion or protected to resist 

corrosion; (4-5-00)

c. Be spring-loaded with a chemically resistant and resilient seal that provides a watertight seal 

against reverse flow; (4-5-00)

d. Not consist of metal to metal seal surfaces; (4-5-00)

e. Be rated at a pressure equal to or greater than the system working pressure; and (4-5-00)
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f. Be positioned and oriented according to manufacturer specifications to ensure proper functioning.

(4-5-00)

02. Location. The Irrigation Line Check Valve shall: (4-5-00)

a. Be located in the pipeline between the irrigation pump and the point of chemical injection into the 

irrigation pipeline, and downstream from a vacuum relief valve and automatic low pressure drain. (4-5-00)

b. When installed, be on a horizontal plane and level. A deviation of not more than ten (10) degrees 

from horizontal is permitted. (4-5-00)

03. Labeling of the Check Valve or Valve Assembly. Shall be labeled with the following: (4-5-00)

a. Manufacturer’s name and model; (4-5-00)

b. Working pressure in pounds per square inch (psi); (4-5-00)

c. Maximum flow rate in gallons per minute; and (4-5-00)

d. Direction of flow. (4-5-00)

04. Model Certification. The manufacturer of the irrigation line check valve shall provide verification 

to the director that the valve model has been tested and certified by an independent laboratory such as the Center For 

Irrigation Technology, Fresno, California and Great Plains Meter, Inc. Aurora, Nebraska, or other Department 

approved facility as meeting the following leakage test criteria: (4-5-00)

a. Low Pressure Drip Test. A check valve shall withstand for sixteen (16) hours without leakage at the 

valve seat an internal hydrostatic pressure equivalent to the head of a column of water five (5) feet (1.5m) high 

retained within the downstream portion of the valve body. No leakage shall occur as evidenced by wetting of paper 

placed beneath the valve assembly. This test is to be conducted with the valve in both the horizontal and vertical 

position if intended for such use. (4-5-00)

b. High Pressure Test. A check valve shall withstand for one (1) minute, without leakage at joints or at 

the valve seat, an internal hydrostatic pressure of two (2) times the rate of working pressure of the valve. (4-5-00)

967. GOOSENECK PIPE LOOP, DOWNHILL AND OVER-A-HILL.

01. Location. Shall be located in the main water line immediately downstream of the irrigation water 

pump. (4-5-00)

02. Position. The bottom side of the pipe at the loop apex shall be at least twenty-four (24) inches 

above the highest sprinkler or other type of water emitting device on the highest part of the field. (4-5-00)

03. Pipe Loop. The loop shall contain either a vacuum relief or combination air and vacuum relief 

valve at the apex of the pipe loop, and if the water pump is portable and the apex is a straight, horizontal section of 

pipe, the pipe shall be level. (4-5-00)

04. Location of Chemical Injection Port. The chemical injection port shall be located downstream of 

the apex of the pipe loop and at least six (6) inches below the bottom side of the pipe at the loop apex. (4-5-00)

05. Use Restriction. Shall not be allowed when pumping from a groundwater source. (4-5-00)

968. VACUUM RELIEF VALVE OR COMBINATION AIR AND VACUUM RELIEF VALVE.

01. Location. Shall be located on top of the horizontal irrigation pipeline on the upstream side of the 

check valve. (4-5-00)
IDAHO ADMINISTRATIVE CODE IDAPA 02.03.03 - Rules Governing Pesticide

Department of Agriculture & Chemigation Use & Application

Page 30 IAC 2008

02. Orifice Size. Shall have a total (individually or combined) orifice size of at least three-fourths (3/4) 

inch diameter for a four (4) inch pipe, a one (1) inch diameter for a five (5) to eight (8) inch pipe, a two (2) inch 

diameter for a nine (9) to eighteen (18) inch pipe, and a three (3) inch diameter for a nineteen (19) inch and greater 

pipe. (4-5-00)

969. INSPECTION PORT.

01. Inspection Port. The inspection port can be combined with a mounting of a vacuum relief or 

combination air and vacuum relief valve and shall: (4-5-00)

a. Be located on the pipeline between the irrigation pump and the irrigation pipeline check valve 

directly above the low pressure drain; (4-5-00)

b. Have a minimum diameter opening of four (4) inches from which the check valves and low 

pressure drain shall be visible; (4-5-00)

c. Be mounted with quick disconnects, quick coupler, ring lock or flange fittings, dresser couplings or 

other fittings that allow for easy removal of the inspection port. Any bolts shall be located on the outside of the 

irrigation water pipe; and (4-5-00)

d. Be located near the irrigation line check valve to allow for inspections and check for 

malfunctioning of the irrigation line check valve and low pressure drain. (4-5-00)

970. AUTOMATIC LOW PRESSURE DRAIN.

01. Automatic Low Pressure Drain. Automatic low pressure drain shall: (4-5-00)

a. Be installed upstream of the irrigation line check valve at the lowest point of the horizontal water 

supply pipeline; (4-5-00)

b. Not extend into the horizontal pipe beyond the inside surface of the bottom of the pipe; (4-5-00)

c. Be at least three-fourths (3/4) inch in diameter with a closing pressure of not less than five (5) psi; 

(4-5-00)

d. If the drain is within twenty (20) feet of the water source, contain a corrosion resistant tube, pipe, 

hose, or similar conduit three-fourths (3/4) inch in diameter to discharge a solution at least twenty (20) feet down 

slope from the irrigation water source and away from any other water sources; and (4-5-00)

e. Not have any valves located on the outlet side of the drain tube. (4-5-00)

971. VARIANCES.

The Department may grant variances with such conditions and safeguards as it determines are necessary to prevent 

contamination or pollution of the waters of the state. Issuance of variances shall not relieve the recipient from 

compliance with all other responsibilities under the Pesticide and Chemigation Act and Rules. Such variances may be 

granted upon a request from the owner or operator of the property affected and approval by the Director. The 

application will state fully the grounds of the application and the facts relied upon. Upon the Department’s further 

investigation, if certain antipollution devices otherwise required by these rules or the Pesticide and Chemigation Act, 

are not necessary or consequences inconsistent with the rules or act, such variances may be granted. (4-5-00)

972. -- 999. (RESERVED).
Page 31

A

Active Ingredient, Experimental 

Permits 18

Acute Toxicity, Experimental 

Permits 18

Air Gap 3

Airflow & Temperature Inversion 

Indicators, Application 21

Amendment, Suspension, or Revocation 

of the LPC Registration 14

Application Near Hazard Areas 21

Applicator Records 14

Approval for Use of Other 

Application 18

Automatic Low Pressure Drain 30

B

Basin Irrigation 3

Bee Restrictions 19

Border Irrigation 3

C

Cancellation or Reduction 17

Certification 3

Certification, Department 

Examinations 8

Change Notification, License 18

Change Of License Status 18

Check Valve 3

Chemical Injection Line Shut (System 

Interlock) 26

Chemical Injection System, 28

Chemigating Over Waters of the 

State 24

Chemigation Equipment Standards 24

Chemigation Wind Speed 

Precautions 18

Chemigator 3

Contract Transport & Disposal, 

Pesticide 23

Coverage Waived 17

Cross-Connection 3

D

Definitions, IDAPA 02.03.03, Rules 

Governing Pesticide & Chemigation 

Use & Application 3

Demonstration & Research 4

Demonstration of Competence 7

Department Examination 

Procedures 10

Department Possession for 

Disposal 23

Deviations From Pesticide Labels & 

Labeling 17

Disposal, Pesticide/Chemigation 20

Domestic Water Supply System 4

Domestic Water Supply System CrossConnected for Chemigation 25

Drip Irrigation 4

E

Electrical Interlock 26

Ester Restriction 20

Examination Fee Per Examination 

Category 16

Exceptions, Pesticide Storage 20

Exceptions, Wind Velocity 18

Experimental Permits 18

Experimental Use, Experimental 

Permits 19

F

Fees 16

Financial Responsibility 16

Flood Irrigation 4

Flood, Basin, Furrow or Border 

Irrigation -- Additional 

Requirements 25

Flow Rate 4

Furrow Irrigation 4

G

General Chemigation 

Requirements 24

Gooseneck Pipe Loop, Downhill & 

Over-A-Hill 29

Green Pea Exception 19

H

Hazard Area 4

Hazard Area, Aircraft Spray 

Distances 21

High Volatile Ester Restrictions 21

High Volatile Esters 4

Home & Garden Restrictions 20

Human Interlock 27

Hydraulic Interlock 27

I

Imposition of Civil Penalty 14

Initiation or Pursuit of any Other 

Action 14

Injection Line Check Valve 28

Injection Pump 4

Inspection Port 4, 30

Interim Exemption From Pesticide 

Dealer Licensing & 

Recordkeeping 11

Irrigation Line Check Valve 28

Irrigation Line Check Valve Model 

Certification 29

Irrigation Systems, Pesticide/

Chemigation 24

L

Labeling of the Check Valve or Valve 

Assembly 29

Licensed Professional Applicator 11

Licensing Periods & Recertification, 

Pesticide 10

Licensing Professional Applicators & 

Pesticide Dealers 7

Location of Chemical Injection 

Port 29

Low Volatile Ester Restrictions 21

Low Volatile Esters 4

Low-Flying Prohibitions 17

M

Mechanical Interlock 27

Metering Pump 28

Microencapsulated Methyl Parathion 

Restriction 21

Minimum Coverage Required 17

Mixer-Loader 4

N

Non-Domestic Pesticides 20

Nonfood & Nonfeed Site 

Conditions 22

O

Orifice Size 30

Other Exceptions 19

Other Spraying Equipment 21

P

Participant Transfer of Product 

Ownership 22

Pesticide Dealer Records, Records 

Requirements 15

Pesticide Dealer's License, Fees 16

Pesticide Registration, Fees 16

Pesticide Use On Alfalfa Seed, Carrot 

Seed, Onion Seed, Radish Seed & 

Clover Seed 22

Pesticide-Fertilizer Mix 

Restrictions 18

Pesticides Labeled for 

Chemigation 24

Phenoxy Herbicide Restrictions 21

Pipe Loop 29

Posting Requirements, Category I 24

Pressure Switch 4

Private Applicator Licensing 5

Private Applicator’s License, Fees 16

Professional Applicator’s License, 

Fees 16

Proof of Financial Ability 16

Proposed Labeling, Experimental 

Permits 18

Protecting Humans & Environment 19

Q

Quantity Limit, Experimental

Subject Index
Subject Index (Cont’d)

Page 32

Permits 19

Quantity Statement, Experimental 

Permits 18

R

Recertification 4

Recertification, Private Applicator 6

Record Contents 14

Record Contents, Records 

Requirements 15

Records Requirements 14

Reduced Pressure Principle Backflow 

Prevention Assembly (RP) 4

Registration & Licensing Requirements 

For Use Of The LPC, Pesticide, 

Chemigation Use, Application 11

Registration, Use of the LPC 12

Restriction, Low-Flying 17

Restrictions 17

Restrictions & Penalties 14

Restrictions To Protect Pollinators 19

Revocation, Suspension or Denial to 

Issue or Renew 14

S

Seminar 4

Sprinkler Irrigation 4

Sprinkler Irrigation or Drip Irrigation, 

Pesticide/Chemigation 25

Statement of Scope, Experimental 

Permits 18

Storage Of Pesticide Containers 19

Storage by Professional Applicators or 

Pesticide Dealers 19

Substitute System, Injection Line Check 

Valve 28

System Interlock 4

T

Target Property not Required to be 

Covered 17

Temporary Tolerance, Experimental 

Permits 18

Transferable 18

U

Unusable Pesticides Collection & 

Disposal 22

Use Restriction 29

Use of the LPC (Compound 1080) 12

V

Vacuum Relief Valve 5

Vacuum Relief Valve Or Combination 

Air & Vacuum Relief Valve 29

Variances 30

Venturi 5

Venturi Injection System 5

Venturi System 28

W

Waters of the State 5

Wind Velocity Restrictions, Pesticide/

Chemigation Use/Application 17

Working Pressure 5