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Which Arizona agency issues the Category 6 (Fumigation) credential?
- The Arizona Department of Agriculture, Pest Management Division (PMD)
- The Arizona Department of Environmental Quality
- The University of Arizona
- The U.S. Environmental Protection Agency
- The Arizona Registrar of Contractors
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Arizona's Category 6 (Fumigation) credential is issued by the Pest Management Division (PMD) of the Arizona Department of Agriculture, under A.R.S. Title 3, Chapter 20 and A.A.C. Title 3, Chapter 8. The University of Arizona provides extension resources, while the Department of Environmental Quality, EPA, and Registrar of Contractors handle other matters. The PMD is the licensing authority for Arizona fumigators.🔗 Source
In Arizona's structural categories, Category 6 is:
- Industrial & Institutional pest control
- Fumigation - control of pests by application of a gas
- Wood-Destroying Organism Treatment
- Ornamental & Turf
- Aquatic
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Arizona's Category 6 is Fumigation: the control of pests by application of a gas. Category 1 is Industrial & Institutional, Category 2a is Wood-Destroying Organism Treatment, Category 3 is Ornamental & Turf, and Category 5 is Aquatic. Holding Category 6 authorizes fumigation work in Arizona. Using the correct category number is necessary for certification and reporting.🔗 Source
To certify in Arizona Category 6 (Fumigation), an applicant must pass:
- Only the Category 6 exam, with no Core
- Only the Core exam
- The Core examination plus the Category 6 examination, each with a score of 75% or higher
- No exam, with experience only
- A federal EPA exam only
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Arizona requires a Certified Applicator to pass the Core examination plus at least one category examination - here Category 6 - each with a score of 75% or higher. The Core covers safety and laws while the category exam covers fumigation. Passing only one exam, relying on experience, or holding only a federal card does not satisfy the requirement. The two-exam structure with a 75% threshold ensures both general and fumigation-specific competence.🔗 Source
What is the Arizona Certified Applicator application fee, and what does a fumigation business additionally need?
- No fees and no business requirements
- $1,000 for the applicator and nothing for the business
- $10 for the applicator and a $5 business fee
- $55 for the Certified Applicator application; the business also needs a $185 Business License with a registered Qualifying Party and proof of financial security
- Only a federal EPA number
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Arizona charges $55 for the Certified Applicator application, and a fumigation business additionally needs a $185 Business License submitted with a registered Qualifying Party (a Qualified Applicator) and proof of financial security on file with the PMD. No-fee/no-requirement, thousand-dollar, or token-fee options are incorrect, and a federal number alone does not substitute. Knowing both the individual fee and the business requirements is part of setting up a compliant Arizona fumigation operation.🔗 Source
In Arizona, who must a fumigation business register as the individual responsible for supervising applicators and maintaining financial security?
- Any employee, regardless of license
- The company's accountant
- A University of Arizona professor
- An EPA inspector
- A registered Qualifying Party, who must be a Certified Qualified Applicator
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Arizona requires a fumigation (or any pest management) business to register a Qualifying Party - a Certified Qualified Applicator - as the individual responsible for ensuring the training, equipping, and supervision of the company's applicators and for keeping the company's proof of financial security on file with the PMD. It cannot be just any employee, the accountant, a professor, or an EPA inspector. The Qualifying Party ties the business's authority to a qualified individual, and the business may only work in the categories in which its Qualifying Party is registered.🔗 Source
Which gas is the primary fumigant used in Arizona structural fumigation?
- Sulfuryl fluoride, an odorless and colorless gas
- Carbon dioxide
- Household ammonia
- Propane
- Steam
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University fumigation references identify sulfuryl fluoride as the primary structural fumigant; it is odorless, colorless, and non-flammable, and penetrates wood to reach hidden pests. Carbon dioxide, ammonia, propane, and steam are not the structural fumigant. In Arizona, fumigation is used for drywood termites, wood-boring beetles, and similar pests where whole-structure treatment is needed. Recognizing sulfuryl fluoride as the fumigant is foundational for an Arizona Category 6 applicant.🔗 Source
Why do fumigators add chloropicrin before introducing sulfuryl fluoride?
- To give the gas a pleasant odor
- Sulfuryl fluoride is odorless and colorless, so chloropicrin's eye and respiratory irritation warns people and deters intruders
- To make the fumigation faster
- To avoid having to seal the structure
- To add moisture to the wood
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University fumigation references explain that, because sulfuryl fluoride cannot be smelled or seen, applicators introduce chloropicrin as a warning agent; its strong irritation of the eyes and respiratory tract at low concentrations warns anyone present that gas is being used and deters intruders from entering the sealed structure. It is not for pleasant odor, speed, skipping the seal, or adding moisture. The chloropicrin warning step is a central fumigation safety measure.🔗 Source
A key advantage of whole-structure fumigation over spot treatment is that fumigation:
- Leaves a permanent protective barrier against future pests
- Needs no sealing of the structure
- Reaches and eliminates infestations hidden from view, treating the whole structure at once
- Works even without reaching a lethal concentration
- Only affects pests on visible surfaces
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University fumigation references note that the advantage of fumigation over localized treatment is that it reaches and eliminates infestations hidden from view, treating all infestations throughout the structure simultaneously. Fumigation does not leave a permanent barrier, does require sealing, must reach a lethal concentration, and is not limited to visible surfaces. Understanding this advantage - and its limits - guides when fumigation is the right recommendation in Arizona.🔗 Source
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