1.3 Recordkeeping, Inspections & Enforcement

Key Takeaways

  • 2 CSR 70-25.120(1) requires certified commercial applicators or their employers to keep records for the use of ALL pesticides — general use as well as restricted use — while noncommercial applicators and public operators keep records only for restricted use pesticides.
  • Records must be completed within three (3) business days of the date of use and kept three (3) years in neat, legible condition at the physical location from which the applicator uses or supervises the use of pesticides.
  • 2 CSR 70-25.120(4) lists fourteen required record elements, subsections (A) through (N), including the often-missed air temperature, measured wind speed, and wind direction for outdoor applications.
  • RSMo 281.061 gives the Director entry only with permission from the owner or person in charge; if access is denied the Director must obtain a search warrant on a showing of probable cause.
  • RSMo 281.060.2 authorizes a civil penalty of not more than one thousand dollars for EACH VIOLATION plus restitution, while RSMo 281.120 authorizes up to $10,000 per violation — $25,000 for a chronic violator — for knowingly using a herbicide on a crop it is not labeled for when it drifts and causes damage.
Last updated: August 2026

Recordkeeping, Inspections & Enforcement

Under the Missouri Pesticide Use Act (RSMo Chapter 281) and 2 CSR 70-25, recordkeeping and regulatory oversight are the backbone of accountability. Detailed records protect applicators against unjustified drift or damage claims, assist medical personnel during a poisoning, let producers verify pre-harvest intervals, and give the Missouri Department of Agriculture (MDA) an audit trail during investigations.

Every certified applicator must know the exact data elements required by rule, the deadlines, and the legal limits on state inspection and enforcement authority.


1. Who Keeps Records, and On What — 2 CSR 70-25.120(1)–(3)

Missouri's scope is broader than the federal baseline, but only for one license class. Read the rule carefully:

+-----------------------------------------------------------------------------+
|                 WHO RECORDS WHAT UNDER 2 CSR 70-25.120                      |
+------------------------------------+----------------------------------------+
| CERTIFIED COMMERCIAL APPLICATORS   | Records for the USE OF ALL PESTICIDES  |
| (or their employers)               | - general use AND restricted use.      |
+------------------------------------+----------------------------------------+
| CERTIFIED NONCOMMERCIAL APPLICATORS| Records for the use of RESTRICTED USE  |
| AND CERTIFIED PUBLIC OPERATORS     | PESTICIDES (RUPs) only.                |
| (or their employers)               |                                        |
+------------------------------------+----------------------------------------+
| BOTH GROUPS                        | Complete within 3 BUSINESS DAYS of the |
|                                    | date of use; keep 3 YEARS, neat and    |
|                                    | legible.                               |
+------------------------------------+----------------------------------------+

A frequent exam trap is assuming every certified applicator must log general use products. Only the commercial applicator does. Note also that since 2025 the definition of "use" in RSMo 281.020(34) includes loading, cleaning equipment, and storing or disposing of containers, pesticides, spray mix, and wash water.

Availability (2 CSR 70-25.120(3)): records must be available for inspection by the Director during regular business hours at the physical location from which certified applicators use or supervise the use of pesticides. On written request, the Director must be furnished a copy within ten (10) days of receipt of the request. The rule says ten days — not ten business days.


2. The Fourteen Mandatory Record Elements — 2 CSR 70-25.120(4)

The rule specifies fourteen items, lettered (A) through (N). Missing any one is a violation:

#Element (2 CSR 70-25.120(4))Practical note
(A)Name and license number of the certified applicator using or supervisingThe supervisor's license number, not just a name
(B)Name of the noncertified applicator; name and license number of the NRUP; name of the technician trainee; or name and license number of the technician, if applicableRecords who actually held the wand
(C)Application date, start time, and end timeBoth clock times, not just the date
(D)Name and address of the person requesting the pesticide useThe customer
(E)Address or brief description of the application site
(F)Size of the area treated (sq ft, linear ft, acres)Excludes indoor spot and crack-and-crevice work
(G)The site, crop and variety name, commodity, or stored product treated, if applicableDistinct from (E); commonly omitted
(H)Target pest(s)"Bugs" or "general spraying" fails
(I)Complete trade (manufacturer's brand) name from the label
(J)EPA registration number, plus the special local need (24(c)) number if applicableMay be satisfied by documentation giving incontrovertible correlation between each use and the registration number
(K)Mixture rate, total amount of mixture used, and rate of application, if applicable
(L)For pre-mixed, ready-to-use products, a reasonable estimate of the amount used and the actual rateSeparate provision for RTU products
(M)Air temperature, measured wind speed, and wind direction at the site of outdoor applicationsExcludes general structural and termite work within ten feet (10') of a building
(N)A written, signed, and dated request from the agricultural producer asking for a lesser concentration than the label provides, if applicable

[!IMPORTANT] Element (M) is the one applicators forget. Missouri requires measured wind speed — not an estimate — plus wind direction and air temperature for every outdoor application. The only carve-out is general structural and termite pest control performed within ten feet of a building. Carry an anemometer and record the reading.


3. MDA Inspection Authority — Consent or Warrant (RSMo 281.061)

Missouri inspectors do not hold an unconditional right of entry. RSMo 281.061 is precise:

+-----------------------------------------------------------------------------+
|                    MDA INVESTIGATIVE AUTHORITY (RSMo 281.061-.063)          |
|                                                                             |
|   [ENTRY BY PERMISSION]   ---> The Director may, WITH PERMISSION from the   |
|                                owner or person in charge, enter a premises  |
|                                at reasonable times to inspect, investigate, |
|                                observe, sample, and audit.                  |
|                                                                             |
|   [SEARCH WARRANT]        ---> If DENIED access, the Director may apply to  |
|                                a court for a search warrant, issued upon    |
|                                probable cause being shown.                  |
|                                                                             |
|   [SUBPOENA - 281.063]    ---> The Director may subpoena witnesses and      |
|                                documents.                                   |
|                                                                             |
|   [REFERRAL - 281.061.3]  ---> Violations may be reported to the county     |
|                                prosecuting attorney; if that attorney fails |
|                                or refuses to act, the ATTORNEY GENERAL acts.|
|                                                                             |
|   [INJUNCTION - 281.061.4]---> The Director may sue to enjoin a violation   |
|                                or threatened violation. No bond required.   |
+-----------------------------------------------------------------------------+

For manufacturing and formulation establishments, the right of entry is limited to the areas where pesticides are packaged, labeled, and released for shipment.

Damage claims (RSMo 281.070): a person claiming damage from a pesticide application files a report with the Director. Filing on time is what preserves the Director's investigative involvement, so applicators should expect an inspection promptly after any drift complaint.

The drift and misuse investigation

  1. An MDA inspector is dispatched to the incident site.
  2. The inspector photographs injury, documents wind direction and speed, and collects vegetation, soil, and water samples for laboratory analysis.
  3. The inspector audits nearby application records to identify which product and applicator match the residue and timing.
  4. If the evidence lines up, the Bureau issues an investigative report and initiates enforcement.

4. Penalties: Three Separate Tracks

Missouri's penalty structure has three distinct tracks, and they carry different numbers. Do not merge them.

+-----------------------------------------------------------------------------+
|                     MISSOURI PESTICIDE PENALTY TRACKS                       |
+-----------------------------------------------------------------------------+
| [1] ADMINISTRATIVE / LICENSE ACTION - RSMo 281.060.1                        |
|     After inquiry and opportunity for a hearing, the Director may DENY,     |
|     SUSPEND, REVOKE, or MODIFY any license or certification.                |
|     Licensees must notify the department within 10 DAYS of any conviction   |
|     of or plea to a listed offense.                                         |
+-----------------------------------------------------------------------------+
| [2] CIVIL PENALTY - RSMo 281.060.2                                          |
|     Not more than $1,000 for EACH VIOLATION, plus an order of RESTITUTION.  |
|     Unpaid penalties are enforced through the CIRCUIT COURT OF COLE COUNTY. |
+-----------------------------------------------------------------------------+
| [3] CRIMINAL - RSMo 281.105                                                 |
|     Conviction of violating 281.010-281.115 or any regulation is a          |
|     MISDEMEANOR: a fine of NOT LESS THAN $100 and NOT MORE THAN $5,000,     |
|     or county jail for NOT LESS THAN 30 DAYS and NOT MORE THAN 1 YEAR,      |
|     or BOTH fine and imprisonment.                                          |
+-----------------------------------------------------------------------------+

The civil penalty in RSMo 281.060.2 is assessed per violation. It is not a per-day penalty, and there is no separate "$5,000 willful" tier — the $5,000 figure belongs to the criminal fine ceiling in 281.105.

Enhanced penalties for off-label herbicide drift — RSMo 281.120

Missouri has a dedicated, much harsher penalty for one specific act: knowingly using a herbicide on a crop for which it is not labeled, where the herbicide then drifts onto another person's field, personal property, real property, or onto another person, and causes damage.

  • Civil penalty of not more than $10,000 for each violation.
  • A chronic violator — someone who violated this subsection in two consecutive years, or in two of the last three years — faces not more than $25,000 for each violation.
  • Refusing to produce subpoenaed records during an active complaint investigation: civil penalty of up to $5,000.
  • The violator is also liable for the Department's reasonable investigative costs.
  • Penalties collected under this section are remitted to the school district in which the violation occurred.
  • The Department may also deny, suspend, revoke, or modify any license for a violation of this section.

Stop orders (RSMo 281.090) allow the Director to halt the sale, use, or removal of a pesticide. Appeals (RSMo 281.095): any person aggrieved by an act of the Director may appeal according to the provisions of chapter 536, Missouri's Administrative Procedure Act.

Test Your Knowledge

According to Missouri regulation 2 CSR 70-25, how long must a certified commercial applicator retain records of pesticide applications, and what is the maximum deadline to complete each record?

A
B
C
D
Test Your Knowledge

Which set of items are ALL required elements of a Missouri pesticide application record under 2 CSR 70-25.120(4)?

A
B
C
D
Test Your Knowledge

An MDA inspector delivers a written request for copies of a commercial applicator's pesticide application records. Under 2 CSR 70-25.120(3), within what period must the applicator furnish them?

A
B
C
D
Test Your Knowledge

A Missouri applicator knowingly sprays a herbicide on a crop the product is not labeled for. The herbicide drifts onto a neighbor's vineyard and damages it. The applicator was penalized for the same conduct in each of the two previous years. Which penalty exposure applies under RSMo 281.120?

A
B
C
D