1.5 Pesticide Dealers, RUP Purchase Controls & Chemical Security

Pesticide Dealers, RUP Purchase Controls & Chemical Security

Certification controls who may use a restricted use pesticide. A parallel set of rules controls who may sell one and who may buy one. Missouri exam items regularly test the seam between these two systems, and the 2025 amendments tightened it.

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1. The Pesticide Dealer License — RSMo 281.050

A Pesticide Dealer is defined in RSMo 281.020(2) as any individual engaged in the business of distributing, selling, offering for sale, or holding for sale at retail, or direct wholesale to the end user, any pesticide classified for restricted use.

Three features of the dealer credential are commonly missed:

1. The dealer exam stands alone. Under 2 CSR 70-25.090(1), the dealer applicant takes a written examination based on the laws and regulations governing the use and sale of pesticides. The candidate handbook is explicit: the dealer applicant takes and passes ONLY the Pesticide Dealer examination. There is no CORE requirement and no category requirement — this is the one Missouri credential that skips CORE.
2. General use products do not trigger it. The definition reaches only pesticides classified for restricted use. A garden center selling nothing but general use products needs no dealer license.
3. It is an annual license. The fee is $35, the license expires annually, and it is subject to the same 60-day grace period and 25% late penalty as other Missouri licenses under RSMo 281.055.

Out-of-state applicants must additionally submit a Non-Resident Agent Form.

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2. What a Dealer Must Verify Before an RUP Changes Hands

+-----------------------------------------------------------------------------+
|                THE RUP TRANSFER CHECK - WHAT A DEALER CONFIRMS              |
|                                                                             |
|   [1] Does the buyer hold a VALID, ACTIVE license?                          |
|       Certified commercial / noncommercial / public operator / certified    |
|       private applicator - or a licensed NRUP purchasing for a supervisor?  |
|                                                                             |
|   [2] Does the buyer's CERTIFICATION COVER THE PRODUCT AND SITE?            |
|       Since 2025 recertification runs in ALL categories, category currency  |
|       is verifiable and matters.                                            |
|                                                                             |
|   [3] Is the buyer BARRED from purchasing?                                  |
|       A Certified PROVISIONAL Private Applicator (age 16-17) may NEVER      |
|       purchase an RUP - RSMo 281.020(2)(e).                                 |
|                                                                             |
|   [4] RECORD the transaction and retain it.                                 |
+-----------------------------------------------------------------------------+

The buyer commits the violation too. The 2025 amendments to RSMo 281.101 added, to the list of unlawful acts, the purchase or acquisition of restricted use pesticides without a proper license. Before 2025 the enforcement pressure sat mostly on the seller; now an unlicensed buyer is independently exposed.

Provisional private applicators may not buy. Of the five restrictions on the 16- or 17-year-old Certified Provisional Private Applicator, one is absolute: the individual "does and will not purchase any restricted use pesticide." A dealer who sells to a provisional licensee has sold to a person barred by statute.

Dealer license actions. RSMo 281.050 provides grounds for suspension or revocation of a dealer license, and dealers must notify the Director of a change of address. Dealers are also covered by RSMo 281.060.1's requirement to notify the Department within ten (10) days of any conviction of or plea to a listed offense.

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3. Chemical Security — A CORE Competency, Not a Suggestion

40 CFR 171.103(c)(10)(i) places "maintaining chemical security for restricted use pesticides" inside the Professionalism competency area that every commercial applicator is examined on.

Why RUP security is regulated at all

Restricted use pesticides are attractive to thieves for resale, and a handful are acutely toxic enough to cause mass casualties if deliberately misused. Stolen product also destroys the applicator's audit trail: inventory that cannot be reconciled against application records looks, to an investigator, exactly like undocumented application.

Practical security controls

[!IMPORTANT] Security and recordkeeping are the same discipline. Missouri already requires commercial applicators to record the trade name, EPA registration number, mixture rate, and total amount used for every application. An accurate inventory that reconciles to those records is simultaneously your security control, your defense in a misuse investigation, and your proof of compliance.

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4. Where the Purchase Rules Meet the Use Rules

A recurring exam scenario mixes these systems. Work it in order:

1. Is the product an RUP? Check the front panel for the restricted use statement and the reason for restriction.
2. Is the buyer licensed to purchase? Certified commercial, noncommercial, public operator, and certified private applicators may purchase within their certification. Provisional private applicators may not purchase at all.
3. Is the person who will apply it authorized? They must be certified in the appropriate category, or be a licensed NRUP working under direct supervision in the supervisor's categories.
4. Does the label demand more? Physical presence, additional certification for fumigants or aerial application, or a specific closed-system requirement.
5. Is it recorded? The dealer records the sale; the applicator records the application within three business days and keeps it three years.