9.4 Transporting Pesticides Safely and Legally

9.4 Transporting Pesticides Safely and Legally

Named in the rule: Colorado Part 4.20 lists "safe use of pesticides by the applicator including: label requirements, transportation, mixing, loading, disposal, equipment cleanup, spill management, storage, application, and precautions to prevent exposure and injury," and Part 4.11 lists transportation among the laws and regulations subjects. 40 CFR § 171.103(c)(2) requires competency in "the proper procedures for the storage, transport, handling, mixing and disposal of pesticides."

Most pesticide incidents that reach the public happen on a road, not in a field. A container that slides off a tailgate at an intersection is an uncontrolled release in a place with bystanders, storm drains, and no containment.

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1. What Never Rides Together

┌─────────────────────────────────────────────────────────────────────────────┐
│                       NEVER TRANSPORT PESTICIDES WITH                       │
├─────────────────────────────────────────────────────────────────────────────┤
│   ✗ People — never in the PASSENGER COMPARTMENT of any vehicle              │
│   ✗ Food or beverages, including the driver's lunch and water               │
│   ✗ Animal feed, forage, or hay                                             │
│   ✗ Seed, including treated seed intended for planting                      │
│   ✗ Fertilizer intended for direct use                                      │
│   ✗ Clothing, PPE, or bedding — a leak contaminates what protects you       │
│   ✗ Livestock or pets                                                       │
│   ✗ Household goods, groceries, or anything a family will handle            │
└─────────────────────────────────────────────────────────────────────────────┘

The rule is not merely about spills. Vapor from an emulsifiable concentrate in an enclosed cab produces an inhalation exposure over a long drive even when nothing leaks, and vapor readily contaminates feed and seed by adsorption.

Carry pesticides in the bed of a truck or in a separate, ventilated compartment, ideally in secondary containment. Keep the spill kit and clean PPE in a separate sealed container from the pesticides.

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2. Before the Load Goes On

1. Inspect every container. Look for leaks, weeping seams, corrosion, bulging, loose or damaged closures, and illegible labels. A container whose label cannot be read is not transportable — and Colorado Part 11.02 makes label protection a storage duty for the same reason.
2. Confirm closures are tight. Most transport leaks come from an incompletely seated cap after a partial pour, not from a failed container.
3. Check compatibility of the load. Keep oxidizers away from combustibles, keep incompatible chemistries physically separated, and never let a fumigant travel next to anything it can permeate.
4. Carry the labeling. You must have the labeling for the products you are transporting and applying — this is the same requirement that puts the container label or a complete copy at the application site.
5. Bring the response materials. Absorbent, a shovel, containment bags or a drum, marking tape, chemical-resistant gloves, and eye protection.

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3. Securing the Load

• Restrain everything. Tie down, strap, block, or brace so nothing shifts, tips, or rolls in a hard stop or a turn.
• Upright and low. Keep containers upright with closures up, and load heavy items low and forward.
• Protect from weather. Cover paper and cardboard packaging; a wetted bag of wettable powder becomes a leaking bag.
• Nothing loose on top. A tool box sliding into a jug is a common cause of punctures.
• Never leave the load unattended and unsecured. Chemical security is a federal core competency and an unlocked truck bed of restricted use pesticides is a theft and misuse risk.
• Bulk and nurse tanks need baffles or full loading; a partially filled unbaffled tank creates a surge that can overwhelm braking and steering.

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4. Vehicle Marking (Colorado Part 7.01)

Colorado requires that all motor vehicles, trailers, and mobile application equipment used by or on behalf of a licensee for applying or carrying pesticides display:

• the company business name in letters not less than two inches high; and
• the city and state of the licensee's place of business in letters not less than one inch high.

Lettering must be clearly legible and must not be rendered difficult to read by fading, scuffing, wear, or damage. Any motor vehicle so identified must be marked on both sides. Aircraft and small capacity sprayers of less than ten gallons are exempt, as is application equipment mounted on a vehicle already marked in accordance with the Rules.

Marking is not decoration: it is what lets a member of the public, a first responder, or an inspector identify who is responsible for a leaking vehicle.

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5. When Federal Hazardous Materials Rules Attach

Many pesticide shipments in agricultural service fall under U.S. Department of Transportation hazardous materials regulations once quantity and packaging thresholds are met. When they apply, they bring shipping papers, proper shipping names, hazard class and UN identification numbers, placarding, package marking and labeling, and hazmat employee training.

Because thresholds turn on the specific product, package size, and total quantity, the practical rules are:

1. Check the SDS. Section 14, Transport Information, gives the proper shipping name, hazard class, UN number, and packing group.
2. Ask before you assume an exception applies. Agricultural exceptions exist but are narrow and conditional.
3. Carry shipping papers within reach of the driver when they are required, and know where the emergency response information is.
4. CHEMTREC (1-800-424-9300) is the 24-hour technical hotline for transportation emergencies, chemical reactivity information, and manufacturer liaison.

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6. If Something Spills on the Road

The Three C's apply exactly as they do in a yard, with the added complication of traffic:

1. Protect people first. Stop safely, set out warning devices, keep bystanders upwind and away, and put on PPE before approaching the leak.
2. Control the source if it is safe — upright the container, close the valve, plug the leak.
3. Contain with absorbent and a berm. Block storm drains and ditches. Do not wash the spill with water, which multiplies the contaminated volume and speeds it toward drainage.
4. Clean up with dry absorbent into labeled containers for proper disposal.

Notification. Call 911 for any release on a public road creating a hazard to traffic or the public. Call the CDPHE 24-hour environmental release line at 1-877-518-5608 when a release enters or threatens surface water, groundwater, or a storm sewer. Call the National Response Center at 1-800-424-8802 immediately when the quantity of a hazardous substance released within 24 hours equals or exceeds its CERCLA reportable quantity. Notify CDA, and notify your employer and insurer.

[!IMPORTANT] Never transport a leaking or contaminated container inside a passenger compartment, including when taking a container to a hospital so physicians can identify the product. Take a clean copy of the label and the SDS instead, or place the container in secondary containment in an open truck bed.