Ag drone insurance: the full breakdown

The five published prices, side by side

Ordered low to high. That is the only ordering applied. The last column is the one most price lists leave out, because a figure published by a company that wants the sale is a different kind of fact from one published by a university that does not.

Why the five disagree by this much

Three reasons. Only one of them is anybody behaving badly.

There is barely a market. Purdue Extension puts it in one sentence: "Only a handful of companies in the United States offer special spray drone insurance with liability coverage. Without competition, a spray drone insurance premium can be $4,000 to $5,000 dollars versus a $35,000 cost for a new drone." A thin market prices the same risk differently depending on who answers the phone.

Half of them are not quoting spraying. Purdue again: "When speaking with an insurance company, make sure they understand if you are seeking coverage for a drone that will be used for monitoring or if you are seeking coverage for a drone that will be applying pesticides. It might change their answer about whether they provide coverage and for how much." A $400 policy and a $10,457 policy are not two prices for one thing.

Hull is in or out. BWI's $10,457 carries $5,000 of hull on a $40,000 airframe. Strip the hull and $1,350 of liability plus $3,500 of chemical is $4,850, which lands inside VT Insurance's $2,500 to $6,000 and beside Purdue's $4,000 to $5,000. Three of the five figures agree once you take the airframe out.

Two of the five cannot be dated at all. BWI's page carries no publication date: its HTML holds no datePublished, no dateModified, no article:published_time and no time element, checked 6 September 2026. The Internet Archive has never captured the URL. SkyWatch's cost page is the same. The VT Insurance figure can be dated and the date is old, appearing verbatim in a 19 June 2024 capture, so it is at least 27 months behind.

BWI's page also does not add up. Its add-ons section prices terrorism cover under TRIA at about $505 and war and hijacking at about $485, which is $990. Its quote summary four paragraphs later prices terrorism and war together at about $607. The $10,457 total only works with the smaller figure. That is a $383 gap inside one document, which is why this page treats $10,457 as an upper bound on a top-of-range airframe rather than as a market rate.

One crash, three policies and why the cheap one pays nothing

Purdue Extension uses a single worked example that does more work than any premium table. A drone crashes into a car on the highway. The crash ruptures the tank. Fungicide reaches a creek and kills the fish.

• General liability pays for the car. It does not pay for the fish kill and it does not pay for the drone.
• Chemical liability pays for the fish kill.
• Hull pays for the drone.

Purdue states the general rule behind it: "the general property casualty insurance excludes any liability resulting from the contents of the spray tank. That can include a drift issue, or environmental hazard, or crop injury to a crop that was sprayed. People often think that a $1 million general liability limit will cover all exposures from flying a drone. But unless you carry chemical liability insurance, that is not true."

Purdue also publishes something no broker will tell you. It is worth reading in their words rather than in ours: "Some insurance agents suggest that hull coverage is the least valuable of all, as its premium relative to coverage ratio is poor. If an operator is looking to save on insurance, hull coverage is the place to make a cut, not the general or chemical liability." That is Purdue's position, not this site's. Hull is also the single biggest line on BWI's worked quote, which is why the totals swing so hard.

What your existing policies do not cover

Purdue Extension restates three warnings in its own chapter. It restates them because operators keep assuming the opposite. Verbatim:

• "Don't assume that the liability insurance for your property, vehicle, or trailer will also cover your drone operation."
• "Don't assume that the insurance you have for ground application equipment will also cover your drone."
• "Just because you have a million-dollar liability policy that does not mean the drone is covered for that much. Read the policy carefully because you may only have a limited amount of coverage to replace a wrecked drone or when facing a lawsuit."

The mechanism underneath all three is the aircraft exclusion. A drone is an aircraft, so the standard ISO Aircraft, Auto or Watercraft exclusion sitting in virtually every commercial General Liability and farm policy removes the claim before drift is even reached. Purdue puts the outcome plainly: "It is almost guaranteed that a drone that sprays pesticides will not be covered under most insurance policies."

What does it actually cost, layer by layer

Every figure in this table comes from BWI Aviation Insurance Agency's published breakdown for a $40,000 airframe, read 6 September 2026. That page carries no publication date, which is dealt with below rather than ignored. A cheaper aircraft moves the hull line and leaves the rest roughly alone, because liability and chemical are priced on the operation rather than on the machine. BWI Aviation puts the hull premium at about 12.5 percent of airframe value in that same breakdown.

BWI's worked example carries a $4,000 hull deductible on a $40,000 drone. On those numbers a $2,000 rotor arm sits below the deductible and the policy pays nothing.

Does Part 137 lower your premium

No broker or carrier publishes a Part 137 discount, in dollars or in percent. It is a gate rather than a credit. BWI Aviation states that some carriers will not offer chemical liability coverage without proof of Part 137, that underwriters will not quote serious agricultural work without it and separately that liability-only quotes are available while a certificate is pending.

The related claim, that Part 137 requires insurance, is false and worth killing because it circulates widely. The full text of 14 CFR Part 137 read from the GPO CFR XML contains no occurrence of financial responsibility, liability, indemnity or bond. The single appearance of the letters "insur" is the verb in 137.41(a). Insurance obligations come from state pesticide law and from your customers.

What does move a premium, per BWI, is logging every flight, keeping clean maintenance records and demonstrating pilot training. Flight hours logged and prior loss history are named rating factors. Nobody publishes what any of them is worth.

Which states set a minimum and what is it

Each row was read from that state's own administrative code or statute on 6 September 2026. The section number is printed so you can check it rather than take our word for it. A row flagged amber was not confirmed against the rule text itself, either because the figure came from a department licensing page or because the statute could not be opened on the day. Those rows say which.

Twenty-five states are here. The other twenty-five either could not be confirmed from a primary source or were never reached at all. North Dakota, Virginia, Alabama, Wisconsin, South Dakota and North Carolina all fell into that gap. Absence from this table is not evidence that a state has no requirement. The only safe move is to ring the department before you bind.

One more thing you are owed before you rely on any of it. Five of these rows have been through a second, adversarial check and three of the five came back wrong: South Carolina had no dollar figure where the statute sets a $25,000 floor, Ohio had its subsection letters the wrong way round and Tennessee could not be traced to any state-published source at all. All three are corrected above. The other twenty rows have had one pass, not two. Treat this table as the place to start a phone call with your state department rather than as the answer.

Three of those rows change what an operator should do, so they are worth pulling out.

Colorado sets the highest ordinary floor at $400,000 and then, at C.R.S. 35-10-106, says that liability insurance policies containing a so-called pollution exclusion shall satisfy the requirement. A Colorado operator can therefore hold a fully compliant policy that would not pay a drift claim. Massachusetts goes the other way at 333 CMR 10.13 and requires the policy to cover chemical drift from legally carried out purposeful pesticide use.

Oklahoma turns a coverage gap into a licensing offence. Okla. Admin. Code 35:30-17-10 says that application of a pesticide specifically excluded on the insurance policy shall be considered working without a license. Read the exclusion schedule on your own certificate before you load the tank.

Nebraska requires no insurance at all to hold a licence and still requires an aerial pesticide business licence, Part 137 certification and notification of every new pilot and aircraft before spray operations. A state with no insurance minimum is not a state with no paperwork.

What the policy will not pay for

The exclusions decide more claims than the limits do. These are the ones that catch ag drone operators, each named on a broker's own published material.

• The aircraft exclusion in your existing cover. A drone is an aircraft, so the standard ISO Aircraft, Auto or Watercraft exclusion in virtually every commercial General Liability and farm policy removes the claim before drift is reached. This is the mechanism behind "my farm policy does not cover it".
• The wrong chemical tier. XC excludes chemical and covers seeding and fertilising only. LC or RC covers a named list. CC is the broad grant. The three tiers are named that way on BWI Aviation's own spray guide and on SkyWatch's published product pages. Operators buy the cheap tier and fly the expensive work.
• Picloram. BWI states it is typically excluded from drone aerial application policies and needs specific cover.
• The crop you were hired to spray. That is a first-party loss and needs a Crops Being Treated endorsement. Louisiana at LAC 7:XXIII.723, Texas at Agric. Code 76.111 and Georgia at O.C.G.A. 2-7-103 all write the exclusion of the treated crop into the state minimum itself.
• The neighbour's field. Adjacent Fields is a named endorsement rather than a default inclusion.
• Tree farms. BWI says some companies do not cover them and to ask first.
• An aircraft not listed under the Part 137 certificate holder. VT Insurance states that policies follow the certificate holder and that every drone flying under that certificate must be scheduled.
• Flying out of compliance. VT Insurance states plainly that a carrier will likely not pay a claim arising from flying illegally. That is what makes the FAA validation letters below an insurance story rather than a paperwork one.

What changed in 2026

The FAA is auditing operators who already hold an exemption. Its own Part 137 and UAS page, last updated 5 May 2026, opens by saying it has become aware of exemption holders conducting commercial agricultural operations in a manner noncompliant with the conditions and limitations of their exemption and that it is implementing operational validations.

It is sending Requests for Information and states that without a response it will not move forward with a decision letter and will close the petition. For an operator whose policy pays only when they are in compliance, that is a coverage question rather than a paperwork one.

Part 108 is still a proposal. Checked against the Federal Register API on 6 September 2026, docket FAA-2025-1908 carries four entries and every one of them is typed Proposed Rule.

They are the notice of 7 August 2025, a denial of extension on 29 September 2025, a reopening of the comment period on 28 January 2026 and a reopening plus denial on 10 February 2026. No document of type Rule exists. Beyond visual line of sight still runs on waivers and exemptions, whatever a vendor page told you about the first half of 2026.

The Part 137 UAS process moved. Per the same FAA page, applicants no longer submit documents to a local Flight Standards District Office. They complete FAA Form 8710-3 and send their exemption number to UAS137Certificates@faa.gov. Exemption first, then the Agricultural Aircraft Operator Certificate. Petitions are filed at least 120 days ahead under 14 CFR 11.63(d).

Who writes this cover in the US

This list is not ranked and the order carries no meaning.

• BWI Aviation Insurance Agency, Inc.. Los Angeles and Anchorage, family owned since 1977. Publishes its own worked quotes for ag drone policies, which is where most of the figures on this page come from. Not to be confused with BWI Companies, a Texas horticultural products distributor with no connection to aviation insurance.
• SkyWatch. Publishes its chemical tiers, including overspray and drift. Names a 1/3/1 limit structure on its own product pages.
• VT Insurance Agency, trading as VTI DroneZone. Vaughn Tolbert sits on the NAAA Uncrewed Aerial Application Systems committee, 2026 roster. Describes itself as the largest ag drone brokerage in the country, a claim that appears only in its own material and that this site has not been able to check independently.
• Global Aerospace. Underwrites UAS risk directly rather than broking it. Its own UAS product page, modified 1 April 2026, describes payload and ground equipment cover and does not mention chemical application, spraying or agriculture.
• Gallagher, formerly AssuredPartners Aerospace. Arthur J. Gallagher acquired AssuredPartners for $13.45bn, closing 18 August 2025, then folded the aerospace team into its global aviation practice. The old AssuredPartners aerospace URL now redirects.

Two names that used to be on this page have been removed. Verizon shut Skyward down in May 2022 and the platform went dark on 30 June 2022; a DNS query on 6 September 2026 returns no A record for skyward.io at all. Thimble no longer sells drone coverage of any kind, per its own Verifly page. Both were listed here as live options until today, which is the reason this page now carries the date it was last checked rather than the date it was written.

What brokers say about timing

Brokers price a submission against the renewal date. A quote obtained well outside a renewal window cannot be acted on. The same risk presented to the same markets twice in one season is visible to the underwriters seeing it.

A specialist agricultural brokerage prices agricultural exposure. An operation flying Part 107 mapping or scouting only, with no chemical on board, is a different risk class and is quoted by general drone insurers.

BWI Aviation names claim history and prior losses among its rating factors, so an open drift file is on the record when a submission goes out. Nobody publishes what it is worth. This page has no view on when any operation should go to market.