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Iowa Pesticide Applicator — Requirements & Free Practice

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Private Applicator Certification

Restricted-use pesticide certification for agricultural commodity production; includes private fumigation designation when separately qualified.

Licensing authority: Iowa Department of Agriculture and Land Stewardship · Application information

Private certification for UAV application

At least one of the following alternatives:

Age
At least 18 years old under Iowa rule 45.22.
Aircraft
The IDALS guidance requires the same FAA and IDOT compliance as commercial UAV operators; aviation examinations belong to another profession and remain conditions.
Application
Passing examinations alone does not confer certification: apply to IDALS, pay the appropriate certification fee, and obtain the certification card.
Application Scope
Private agricultural use of restricted-use pesticides by UAV.
Commercial Certification
IDALS also permits issuance based on current commercial certification, as represented in the separate commercial-certification route.
Score Validity
Unused passing examination scores remain valid for a maximum of one year under rule 45.22(1)(a).
Supervision Exemption
The statutory 21-day initial-employment exemption and the narrower restricted-use safeguards of rule 45.22(7)-(9) concern supervised work, not a separately issued temporary credential.
Issuance based on current commercial certification
No examination is required for this applicant pathway.
Application
Submit written request and the $15 private applicator certification fee to IDALS.
Commercial Certification
Holds current commercial applicator certification and meets that certification’s renewal requirements when seeking renewal.
Prior Examinations
The source conditions this pathway on current certification, and does not independently name a pesticide examination that the private applicant must take or have passed for this issuance.

Official no-examination sources

Effective from 2026-09-22.

Initial certification by examination

At least one of the following alternatives:

Age
At least 18 years old under Iowa rule 45.22.
Application
Passing examinations alone does not confer certification: apply to IDALS, pay the appropriate certification fee, and obtain the certification card.
Application Scope
Restricted-use pesticides in agricultural commodity production on the applicator’s or employer’s owned or rented property, or qualifying uncompensated services exchanged between producers.
Fee
Pay the $15 private certification fee for a period not exceeding three years.
Score Validity
Unused passing examination scores remain valid for a maximum of one year under rule 45.22(1)(a).
Supervision Exemption
The statutory 21-day initial-employment exemption and the narrower restricted-use safeguards of rule 45.22(7)-(9) concern supervised work, not a separately issued temporary credential.
Initial private fumigation designation

All of the following:

  • At least one of the following alternatives:

  • Private Fumigation Examination (practice unavailable)
Age
At least 18 years old under Iowa rule 45.22.
Application
Passing examinations alone does not confer certification: apply to IDALS, pay the appropriate certification fee, and obtain the certification card.
Application Scope
Purchases or applies restricted-use soil or non-soil fumigants.
Implementation Notice
ISU describes the initial fumigation test as based on the commercial category 7C manual; IDALS explicitly offers PF as a separate test, so it is not reidentified as the commercial 7C examination.
Instruction Alternative
At renewal, rule 45.22(3)(c) permits fumigation instruction in addition to the general private certification examination or instruction; annual course-qualified applicants have a separate no-exam renewal route.
Private Status
The general private qualification is required in addition to the fumigation examination, even when its exam was passed earlier.
Score Validity
Unused passing examination scores remain valid for a maximum of one year under rule 45.22(1)(a).
Supervision Exemption
The statutory 21-day initial-employment exemption and the narrower restricted-use safeguards of rule 45.22(7)-(9) concern supervised work, not a separately issued temporary credential.
Renewal based on current commercial certification
No examination is required for this applicant pathway.
Application
Submit written request and the $15 private applicator certification fee to IDALS.
Commercial Certification
Holds current commercial applicator certification and meets that certification’s renewal requirements when seeking renewal.
Prior Examinations
The source conditions this pathway on current certification, and does not independently name a pesticide examination that the private applicant must take or have passed for this issuance.

Official no-examination sources

Effective from 2026-09-22.

Renewal through private continuing instruction
No examination is required for this applicant pathway.
Annual Instruction
Completed two hours of approved private continuing instruction in each required year of the renewal period.
Fee
Pay the private certification renewal fee.
Renewal Period
Renew by April 15 in the calendar year following certification expiration.

Official no-examination sources

Effective from 2026-09-22.

Renewal by examination

At least one of the following alternatives:

Age
At least 18 years old under Iowa rule 45.22.
Application
Passing examinations alone does not confer certification: apply to IDALS, pay the appropriate certification fee, and obtain the certification card.
Application Scope
Restricted-use pesticides in agricultural commodity production on the applicator’s or employer’s owned or rented property, or qualifying uncompensated services exchanged between producers.
Fee
Pay the $15 private certification fee for a period not exceeding three years.
Instruction Alternative
Two approved instruction hours in each required year allow renewal without an examination; missing a year requires examination.
Renewal Period
Complete the private renewal requirements by April 15 of the calendar year following expiration.
Score Validity
Unused passing examination scores remain valid for a maximum of one year under rule 45.22(1)(a).
Supervision Exemption
The statutory 21-day initial-employment exemption and the narrower restricted-use safeguards of rule 45.22(7)-(9) concern supervised work, not a separately issued temporary credential.
Renewal of private certification and fumigation designation by examination

All of the following:

  • At least one of the following alternatives:

  • Private Fumigation Examination (practice unavailable)
Age
At least 18 years old under Iowa rule 45.22.
Application
Passing examinations alone does not confer certification: apply to IDALS, pay the appropriate certification fee, and obtain the certification card.
Application Scope
Purchases or applies restricted-use soil or non-soil fumigants.
Implementation Notice
ISU describes the initial fumigation test as based on the commercial category 7C manual; IDALS explicitly offers PF as a separate test, so it is not reidentified as the commercial 7C examination.
Instruction Alternative
At renewal, rule 45.22(3)(c) permits fumigation instruction in addition to the general private certification examination or instruction; annual course-qualified applicants have a separate no-exam renewal route.
Private Status
The general private qualification is required in addition to the fumigation examination, even when its exam was passed earlier.
Score Validity
Unused passing examination scores remain valid for a maximum of one year under rule 45.22(1)(a).
Supervision Exemption
The statutory 21-day initial-employment exemption and the narrower restricted-use safeguards of rule 45.22(7)-(9) concern supervised work, not a separately issued temporary credential.
Renewal of private certification and fumigation designation through instruction
No examination is required for this applicant pathway.
Fee
Pay the required private certification fee.
Fumigation Instruction
Also completed the department-prescribed fumigation instruction required for renewal of the designation; ISU directs private fumigators to annual category 7C instruction.
Private Instruction
Completed the required annual private certification instruction.

Official no-examination sources

Effective from 2026-09-22.

Iowa Core Examination

Examination outline
  • Label and labeling comprehension
    • The general format and terminology of pesticide labels and labeling.
    • Understanding instructions, warnings, terms, symbols, and other information commonly appearing on pesticide labels and labeling.
    • Understanding that it is a violation of Federal law to use any registered pesticide in a manner inconsistent with its labeling.
    • Understanding labeling requirements that a certified applicator must be physically present at the site of the application.
    • Understanding labeling requirements for supervising noncertified applicators working under the direct supervision of a certified applicator.
    • Understanding that applicators must comply with all use restrictions and directions for use contained in pesticide labels and labeling, including being certified in the certification category appropriate to the type and site of the application.
    • Understanding the meaning of product classification as either general or restricted use and that a product may be unclassified.
    • Understanding and complying with product-specific notification requirements.
    • Recognizing and understanding the difference between mandatory and advisory labeling language.
  • Safety
    • Understanding the different natures of the risks of acute toxicity and chronic toxicity, as well as the long-term effects of pesticides.
    • Understanding that a pesticide's risk is a function of exposure and the pesticide's toxicity.
    • Recognition of likely ways in which dermal, inhalation, and oral exposure may occur.
    • Common types and causes of pesticide mishaps.
    • Precautions to prevent injury to applicators and other individuals in or near treated areas.
    • Need for, and proper use of, protective clothing and personal protective equipment.
    • Symptoms of pesticide poisoning.
    • First aid and other procedures to be followed in case of a pesticide mishap.
    • Proper identification, storage, transport, handling, mixing procedures, and disposal methods for pesticides and used pesticide containers, including precautions to be taken to prevent children from having access to pesticides and pesticide containers.
  • Environment
    • Weather and other indoor and outdoor climatic conditions.
    • Types of terrain, soil, or other substrate.
    • Presence of fish, wildlife, and other non-target organisms.
    • Drainage patterns.
  • Pests
    • The importance of correctly identifying target pests and selecting the proper pesticide product(s) for effective pest control.
    • Verifying that the labeling does not prohibit the use of the product to control the target pest(s).
  • Pesticides
    • Types of pesticides.
    • Types of formulations.
    • Compatibility, synergism, persistence, and animal and plant toxicity of the formulations.
    • Hazards and residues associated with use.
    • Factors that influence effectiveness or lead to problems such as pesticide resistance.
    • Dilution procedures.
  • Equipment
    • Types of equipment and advantages and limitations of each type.
    • Use, maintenance, and calibration procedures.
  • Application methods
    • Methods used to apply various forms and formulations of pesticides.
    • Knowledge of which application method to use in a given situation and that use of a fumigant, aerial application, sodium cyanide, or sodium fluoroacetate requires additional certification.
    • How selection of application method and use of a pesticide may result in proper use, unnecessary or ineffective use, and misuse.
    • Prevention of drift and pesticide loss into the environment.
  • Laws and regulations
  • Responsibilities of supervisors of noncertified applicators
    • Understanding and complying with requirements in § 171.201 of this part for certified commercial applicators who supervise noncertified applicators using restricted use pesticides.
    • The recordkeeping requirements of pesticide safety training for noncertified applicators who use restricted use pesticides under the direct supervision of a certified applicator.
    • Providing use-specific instructions to noncertified applicators using restricted use pesticides under the direct supervision of a certified applicator.
    • Explaining pertinent State, Tribal, and Federal laws and regulations to noncertified applicators who use restricted use pesticides under the direct supervision of a certified applicator.
  • Professionalism
    • Maintaining chemical security for restricted use pesticides.
    • How to communicate information about pesticide exposures and risks with customers and the public.
    • Appropriate product stewardship for certified applicators.
Examination sources

Private Applicator Exam

Examination outline
  • Label and labeling comprehension
    • The general format and terminology of pesticide labels and labeling.
    • Understanding instructions, warnings, terms, symbols, and other information commonly appearing on pesticide labels and labeling.
    • Understanding that it is a violation of Federal law to use any registered pesticide in a manner inconsistent with its labeling.
    • Understanding when a certified applicator must be physically present at the site of the application based on labeling requirements.
    • Understanding labeling requirements for supervising noncertified applicators working under the direct supervision of a certified applicator.
    • Understanding that applicators must comply with all use restrictions and directions for use contained in pesticide labels and labeling, including being certified in the appropriate category to use restricted use pesticides for fumigation or aerial application, or predator control devices containing sodium cyanide or sodium fluoroacetate, if applicable.
    • Understanding the meaning of product classification as either general or restricted use, and that a product may be unclassified.
    • Understanding and complying with product-specific notification requirements.
    • Recognizing and understanding the difference between mandatory and advisory labeling language.
  • Safety
    • Understanding the different natures of the risks of acute toxicity and chronic toxicity, as well as the long-term effects of pesticides.
    • Understanding that a pesticide's risk is a function of exposure and the pesticide's toxicity.
    • Recognition of likely ways in which dermal, inhalation, and oral exposure may occur.
    • Common types and causes of pesticide mishaps.
    • Precautions to prevent injury to applicators and other individuals in or near treated areas.
    • Need for, and proper use of, protective clothing and personal protective equipment.
    • Symptoms of pesticide poisoning.
    • First aid and other procedures to be followed in case of a pesticide mishap.
    • Proper identification, storage, transport, handling, mixing procedures, and disposal methods for pesticides and used pesticide containers, including precautions to be taken to prevent children from having access to pesticides and pesticide containers.
  • Environment
    • Weather and other climatic conditions.
    • Types of terrain, soil, or other substrate.
    • Presence of fish, wildlife, and other non-target organisms.
    • Drainage patterns.
  • Pests
    • The importance of correctly identifying target pests and selecting the proper pesticide product(s).
    • Verifying that the labeling does not prohibit the use of the product to control the target pest(s).
  • Pesticides
    • Types of pesticides.
    • Types of formulations.
    • Compatibility, synergism, persistence, and animal and plant toxicity of the formulations.
    • Hazards and residues associated with use.
    • Factors that influence effectiveness or lead to problems such as pesticide resistance.
    • Dilution procedures.
  • Equipment
    • Types of equipment and advantages and limitations of each type.
    • Uses, maintenance, and calibration procedures.
  • Application methods
    • Methods used to apply various forms and formulations of pesticides.
    • Knowledge of which application method to use in a given situation and that use of a fumigant, aerial application, or predator control device containing sodium cyanide or sodium fluoroacetate requires additional certification.
    • How selection of application method and use of a pesticide may result in proper use, unnecessary or ineffective use, and misuse.
    • Prevention of drift and pesticide loss into the environment.
  • Laws and regulations
  • Responsibilities for supervisors of noncertified applicators
    • Understanding and complying with requirements in § 171.201 of this part for private applicators who supervise noncertified applicators using restricted use pesticides.
    • Providing use-specific instructions to noncertified applicators using restricted use pesticides under the direct supervision of a certified applicator.
    • Explaining appropriate State, Tribal, and Federal laws and regulations to noncertified applicators working under the direct supervision of a certified applicator.
  • Stewardship
    • Maintaining chemical security for restricted use pesticides.
    • How to communicate information about pesticide exposures and risks with agricultural workers and handlers and other persons.
  • Agricultural pest control
    • Specific pests of relevant agricultural commodities.
    • How to avoid contamination of ground and surface waters.
    • Understanding pre-harvest and restricted entry intervals and entry-restricted periods and areas.
    • Understanding specific pesticide toxicity and residue potential when pesticides are applied to animal or animal product agricultural commodities.
    • Relative hazards associated with using pesticides on animals or places in which animals are confined based on formulation, application technique, age of animal, stress, and extent of treatment.
Examination sources

Private Fumigation Examination

Examination outline
  • Label and labeling comprehension
    • Labeling requirements specific to soil fumigants.
    • Requirements for certified applicators of fumigants, fumigant handlers and permitted fumigant handler activities, and the safety information that certified applicators must provide to noncertified applicators using fumigants under the direct supervision of certified applicators.
    • Entry-restricted period for different tarped and untarped field application scenarios.
    • Recordkeeping requirements imposed by product labels and labeling.
    • Labeling provisions unique to products containing certain active ingredients.
    • Labeling requirements for fumigant management plans, such as when a fumigant management plan must be in effect, how long it must be kept on file, where it must be kept during the application, and who must have access to it; the elements of a fumigant management plan and resources available to assist the applicator in preparing a fumigant management plan; the person responsible for verifying that a fumigant management plan is accurate; and the elements, purpose and content of a post-application summary, who must prepare it, and when it must be completed.
  • Safety
    • Understanding how certified applicators, noncertified applicators using fumigants under the direct supervision of certified applicators, field workers, and bystanders can become exposed to fumigants.
    • Common problems and mistakes that can result in direct exposure to fumigants.
    • Signs and symptoms of human exposure to fumigants.
    • Air concentrations of a fumigant that require applicators to wear respirators or to exit the work area entirely.
    • Steps to take if a fumigant applicator experiences sensory irritation.
    • Understanding air monitoring, when it is required, and where and when to take samples.
    • Buffer zones, including procedures for buffer zone monitoring and who is permitted to be in a buffer zone.
    • First aid measures to take in the event of exposure to a soil fumigant.
    • Labeling requirements for transportation, storage, spill cleanup, and emergency response for soil fumigants, including safe disposal of containers and contaminated soil, and management of empty containers.
  • Soil fumigant chemical characteristics
    • Chemical characteristics of soil fumigants.
    • Specific human exposure concerns for soil fumigants.
    • How soil fumigants change from a liquid or solid to a gas.
    • How soil fumigants disperse in the application zone.
    • Compatibility concerns for tanks, hoses, tubing, and other equipment.
  • Application
    • Application methods, including but not limited to water-run and non-water-run applications, and equipment commonly used for each soil fumigant.
    • Site characteristics that influence fumigant exposure.
    • Understanding temperature inversions and their impact on soil fumigant application.
    • Weather conditions that could impact timing of soil fumigant application, such as air stability, air temperature, humidity, and wind currents, and labeling statements limiting applications during specific weather conditions.
    • Conducting pre-application inspection of application equipment.
    • Understanding the purpose and methods of soil sealing, including the factors that determine which soil sealing method to use.
    • Understanding the use of tarps, including the range of tarps available, how to seal tarps, and labeling requirements for tarp removal, perforation, and repair.
    • Calculating the amount of product required for a specific treatment area.
    • Understanding the basic techniques for calibrating soil fumigant application equipment.
  • Soil and pest factors
    • Influence of soil factors on fumigant volatility and movement within the soil profile.
    • Factors that influence gaseous movement through the soil profile and into the air.
    • Soil characteristics, including how soil characteristics affect the success of a soil fumigant application, assessing soil moisture, and correcting for soil characteristics that could hinder a successful soil fumigant application.
    • Identifying pests causing the damage and verifying they can be controlled with soil fumigation.
    • Understanding the relationship between pest density and application rate.
    • The importance of proper application depth and timing.
  • Personal protective equipment
    • Following labeling directions for required personal protective equipment.
    • Selecting, inspecting, using, caring for, replacing, and disposing of personal protective equipment.
    • Understanding the types of respirators required when using specific soil fumigants and how to use them properly, including medical evaluation, fit testing, and required replacement of cartridges and canisters.
    • Labeling requirements and other laws applicable to medical evaluation for respirator use, fit tests, training, and recordkeeping.
  • Fumigant management plans and post-application summaries
    • When a fumigant management plan must be in effect, how long it must be kept on file, where it must be kept during the application, and who must have access to it.
    • The elements of a fumigant management plan and resources available to assist the applicator in preparing a fumigant management plan.
    • The person responsible for verifying that a fumigant management plan is accurate.
    • The elements, purpose and content of a post-application summary, who must prepare it, and when it must be completed.
  • Buffer zones and posting requirements
    • Buffer zones and the buffer zone period.
    • Identifying who may be in a buffer zone during the buffer zone period and who is prohibited from being in a buffer zone during the buffer zone period.
    • Using the buffer zone table from the labeling to determine the size of the buffer zone.
    • Factors that determine the buffer zone credits for application scenarios and calculating buffer zones using credits.
    • Distinguishing buffer zone posting and treated area posting, including the pre-application and post-application posting timeframes for each.
    • Proper choice and placement of warning signs.
  • Label and labeling comprehension
  • Safety
    • Understanding how certified applicators, handlers, and bystanders can become exposed to fumigants.
    • Common problems and mistakes that can result in direct exposure to fumigants.
    • Signs and symptoms of human exposure to fumigants.
    • When air concentrations of a fumigant triggers handlers to wear respirators or to exit the work area entirely.
    • Steps to take if a person using a fumigant experiences sensory irritation.
    • Understanding air monitoring, when it is required, and where and when to take samples.
    • Buffer zones, including procedures for buffer zone monitoring and who is permitted to be in a buffer zone.
    • First aid measures to take in the event of exposure to a fumigant.
    • Labeling requirements for transportation, storage, spill clean up, and emergency response for non-soil fumigants, including safe disposal of containers and contaminated materials, and management of empty containers.
  • Non-soil fumigant chemical characteristics
    • Chemical characteristics of non-soil fumigants.
    • Specific human exposure concerns for non-soil fumigants.
    • How fumigants change from a liquid or solid to a gas.
    • How fumigants disperse in the application zone.
    • Compatibility concerns for tanks, hoses, tubing, and other equipment.
  • Application
    • Application methods and equipment commonly used for non-soil fumigation.
    • Site characteristics that influence fumigant exposure.
    • Conditions that could impact timing of non-soil fumigant application, such as air stability, air temperature, humidity, and wind currents, and labeling statements limiting applications when specific conditions are present.
    • Conducting pre-application inspection of application equipment and the site to be fumigated.
    • Understanding the purpose and methods of sealing the area to be fumigated, including the factors that determine which sealing method to use.
    • Calculating the amount of product required for a specific treatment area.
    • Understanding the basic techniques for calibrating non-soil fumigant application equipment.
    • Understanding when and how to conduct air monitoring and when it is required.
  • Pest factors
    • Influence of pest factors on fumigant volatility.
    • Factors that influence gaseous movement through the area being fumigated and into the air.
    • Identifying pests causing the damage and verifying they can be controlled with fumigation.
    • Understanding the relationship between pest density and application rate.
    • The importance of proper application rate and timing.
  • Personal protective equipment
    • Following labeling directions for required personal protective equipment.
    • Selecting, inspecting, using, caring for, replacing, and disposing of personal protective equipment.
    • Understanding the types of respirators required when using specific soil fumigants and how to use them properly, including medical evaluation, fit testing, and required replacement of cartridges and canisters.
    • Labeling requirements and other laws applicable to medical evaluation for respirator use, fit tests, training, and recordkeeping.
  • Fumigant management plans and post-application summaries
    • When a fumigant management plan must be in effect, how long it must be kept on file, where it must be kept during the application, and who must have access to it.
    • The elements of a fumigant management plan and resources available to assist the applicator in preparing a fumigant management plan.
    • The person responsible for verifying that a fumigant management plan is accurate.
    • The elements, purpose and content of a post-application summary, who must prepare it, and when it must be completed.
  • Posting requirements
    • Understanding who is allowed in an area being fumigated or after fumigation and who is prohibited from being in such areas.
    • Distinguishing fumigant labeling-required posting and treated area posting, including the pre-application and post-application posting timeframes for each.
    • Proper choice and placement of warning signs.
Examination sources