Right to Farm Laws in Hawaii: What Farmers and Landowners Need to Know

Hawaii’s agricultural land is under constant pressure. As residential and commercial development pushes deeper into rural areas across Oahu, Maui, the Big Island, and Kauai, farmers increasingly find themselves facing noise complaints, odor disputes, and nuisance lawsuits from neighbors who moved in long after the fields were already there.

That pressure is exactly why Hawaii enacted its Right to Farm Act. When nonagricultural land uses extend into agricultural areas, farming operations often become the subject of nuisance lawsuits that may result in the premature removal of lands from agricultural use and may discourage future investments in agriculture. The law pushes back against that trend by giving qualifying operations a legal shield.

Whether you raise livestock on the Big Island, run an aquaculture operation on Oahu, or keep bees and poultry on a small farm parcel in Maui, understanding how Hawaii’s right to farm law works — and where its limits are — can make the difference between staying in business and losing a costly legal fight.

Important Note: This article is for general informational purposes only and does not constitute legal advice. If you are facing a nuisance complaint or lawsuit, consult a licensed Hawaii attorney familiar with agricultural law.

What Are Right to Farm Laws in Hawaii

Like those present in the other forty-nine states, Hawaii’s law centers on protecting certain types of farming operations from nuisance suits when they impact neighboring property, for example through noise or pollution. Every state in the country has some version of a right to farm statute, but Hawaii’s version has several features that make it broader than most.

The legislature found that when nonagricultural land uses extend into agricultural areas, farming operations often become the subject of nuisance lawsuits. It is also a declared policy of the state to “foster attitudes and activities conducive to maintaining agriculture as a major sector of Hawaii’s economy.” Accordingly, the purpose of the chapter is to reduce the loss of the state’s agricultural resources by limiting the circumstances under which farming operations may be deemed to be a nuisance.

The statute is codified at Hawaii Revised Statutes (HRS) Chapter 165, known as the Hawaii Right to Farm Act. Hawaii’s legislature passed its right-to-farm law with the stated intention of stopping “the premature removal of lands from agricultural use” and ensuring future investment in agriculture. The Act was first passed in 1982 and has been amended several times since, most recently in 2012.

The preservation and promotion of farming is declared to be in the public purpose and deserving of public support. That declaration matters because it signals how courts are directed to interpret the law — broadly, in favor of the farmer.

What Farming Operations Are Covered in Hawaii

Hawaii’s definition of a covered “farming operation” is one of the most expansive in the country. Under HRS § 165-2, “farming operation” means a commercial agricultural, silvicultural, or aquacultural facility or pursuit conducted in whole or in part, including the care and production of livestock and livestock products, poultry and poultry products, apiary products, and plant and animal production for nonfood uses; the planting, cultivating, harvesting, and processing of crops; and the farming or ranching of any plant or animal species in a controlled salt, brackish, or freshwater environment.

That core definition is intentionally broad, but the statute goes further. Roadside stands, food establishments, farmers’ markets, food hubs, and commercial kitchens selling value-added and agricultural goods grown in Hawaii also receive protections. Hawaii is only one of a handful of states that also includes employment and the use of labor as part of the definition of farming operations.

The definition also expressly covers several specific activities and byproducts of farming. These include agricultural-based commercial operations, noises, odors, dust, and fumes emanating from a commercial agricultural or aquacultural facility or pursuit, and the application of chemical fertilizers, conditioners, insecticides, pesticides, and herbicides.

One practical point worth noting: a farming operation that conducts processing operations or salt, brackish, or freshwater aquaculture operations on land zoned for industrial, commercial, or other nonagricultural use shall not, by reason of that zoning, fall beyond the scope of this definition; provided that those processing operations form an integral part of operations that otherwise meet the requirements of this definition. This means zoning classification alone cannot strip you of protection if your operation is genuinely agricultural in nature.

If you keep backyard chickens or raise goats as part of a commercial operation, coverage may apply. See our guides on backyard chicken laws in Hawaii and goat ownership laws in Hawaii for more on how those animals are regulated in the state.

What Nuisances Are Protected Under Hawaii’s Right to Farm Law

The law protects qualifying farming operations from a wide range of nuisance-based claims. Under HRS § 165-2, “nuisance” means any interference with reasonable use and enjoyment of land, including but not limited to smoke, odors, dust, noise, or vibration; provided that nothing in this chapter shall in any way restrict or impede the authority of the state to protect the public health, safety, and welfare.

One of the most important features of the Hawaii law is how broadly it defines a “nuisance claim” for purposes of the statute. Nuisance, as used in this chapter, includes all claims that meet the requirements of this definition regardless of whether a complainant designates such claims as brought in nuisance, negligence, trespass, or any other area of law or equity; provided that nuisance as used in this chapter does not include an alleged nuisance that involves water pollution or flooding.

This is significant. A neighbor cannot sidestep the Right to Farm Act simply by labeling their complaint as a trespass or negligence claim instead of a nuisance claim. Hawaii now defines nuisance expansively, meaning Right to Farm protections apply in a variety of legal contexts. The substance of the complaint — not the legal label attached to it — determines whether the Act applies.

Key Insight: Common farm-related complaints covered by the law include rooster crowing, livestock odors, dust from tilling, noise from farm equipment, and fumes from legally applied pesticides or fertilizers. Learn more about how rooster noise is specifically addressed in our article on rooster crowing laws in Hawaii.

The protection extends to interference caused by smoke, odors, dust, noise, and vibration. So if a neighbor complains about the smell of your chicken operation, the sound of your tractors at harvest time, or the dust kicked up during planting season, all of those complaints fall squarely within the scope of what the law is designed to shield you from — provided your operation qualifies.

The “Coming to the Nuisance” Rule in Hawaii

One of the most practical doctrines in agricultural law is the “coming to the nuisance” rule, which addresses what happens when a new neighbor moves in next to an existing farm and then complains about normal farm activities. Hawaii’s Right to Farm Act directly addresses this scenario.

Hawaii’s original Right to Farm law required farm operations to meet a series of conditions to receive protection from nuisance suits: (1) the farming operation could not have been a nuisance when it began; (2) the conditions surrounding the farm changed after it was established; (3) the farm lawfully operated at least a year prior to the nuisance claim; and (4) the farm operation was not operating negligently or improperly.

Those conditions were designed to codify the “coming to the nuisance” concept — essentially, if you move next to a farm and then sue the farmer for being a farm, you bear a heavier burden. However, the law has evolved significantly since its original passage. The current law in Hawaii has removed these requirements for protection. You no longer need to prove that conditions changed after you established your operation or that you had been operating for at least a year.

Under the current statute, no court, official, public servant, or public employee shall declare any farming operation a nuisance for any reason if the farming operation has been conducted in a manner consistent with generally accepted agricultural and management practices. There shall be a rebuttable presumption that a farming operation does not constitute a nuisance.

The shift to a rebuttable presumption is meaningful. It places the burden on the complaining party to overcome that presumption, rather than requiring the farmer to affirmatively prove each qualifying condition. In practice, this means farm activities are assumed acceptable unless proved otherwise.

Limits and Exceptions to Right to Farm Protection in Hawaii

The Right to Farm Act is broad, but it is not absolute. Several important limits and exceptions apply, and understanding them helps you avoid a false sense of security.

Water Pollution and Flooding Are Excluded

The definition of nuisance as used in this chapter does not include an alleged nuisance that involves water pollution or flooding. This is one of the clearest carve-outs in the statute. If your farming operation causes runoff that pollutes a neighbor’s water supply or contributes to flooding on adjacent land, the Right to Farm Act will not protect you from the resulting claims.

Public Health, Safety, and Welfare

The statute also contains a clause that preserves the rights of the state to protect the public’s health, safety, and welfare. This means state agencies can still act against a farming operation when genuine public health or safety concerns arise, even if the operation would otherwise qualify for protection. It is unclear how these two provisions interact, as they have yet to fully play out in court.

Generally Accepted Practices Are the Standard

Protection hinges entirely on whether you are using generally accepted agricultural and management practices. In light of Hawaii’s broad protection of farm operations from nuisance suits, the meaning of accepted agricultural and management practices has proved important in court. In one case, with various rulings appealed six times, the court made an operation’s awareness about practices key to liability. Ignorance of accepted practices is not a defense — knowing what those practices are and following them is the core requirement.

County Zoning Considerations

Zoning laws restrict counties’ capacity to pass ordinances or regulations that interfere with or restrain farming operations. However, county zoning rules still govern what types of activities can occur in which zones. If you operate in an area not zoned for agriculture, you may face additional hurdles even if the Right to Farm Act technically applies to your operation’s processing activities.

For a broader look at how Hawaii regulates animals and farming activities, our farm animals guide covers many of the species and activities that intersect with these protections. You may also want to review beekeeping laws in Hawaii, since apiary products are specifically included in the Right to Farm Act’s definition of farming operations.

How to Qualify for Right to Farm Protection in Hawaii

Because the current version of the law no longer requires you to prove a multi-factor test, qualifying for protection is more straightforward than it once was. The central requirement is operating in accordance with generally accepted agricultural and management practices. Here is what that means in practical terms.

• Operate as a commercial farming operation. The statute covers commercial agricultural, silvicultural, and aquacultural operations. Purely hobbyist or non-commercial activities may not qualify, so maintaining records of your commercial activity — sales receipts, tax filings, business registration — is important.
• Follow generally accepted agricultural and management practices. These are the industry-recognized standards for your type of operation. For livestock producers, this includes humane care standards and waste management. For crop farmers, it includes responsible pesticide application and soil management. Document your practices and keep records showing you follow them.
• Stay within the statutory definition of “farming operation.” Your activity must fall within the categories defined in HRS § 165-2. This includes the care and production of livestock and livestock products, poultry and poultry products, apiary products, and plant and animal production for nonfood uses, as well as the planting, cultivating, harvesting, and processing of crops.
• Avoid the excluded categories. Make sure your operation does not cause water pollution or flooding, which fall outside the statute’s protection regardless of your other practices.
• Maintain proper records. If a nuisance complaint is ever filed, your ability to demonstrate that you followed accepted practices will rest heavily on documentation — farm logs, pesticide application records, veterinary records for livestock, and correspondence with extension services or the Hawaii Department of Agriculture.

Pro Tip: Contact the Hawaii Department of Agriculture or your local University of Hawaii Cooperative Extension Service office for guidance on what constitutes generally accepted agricultural and management practices for your specific type of operation. Getting that guidance in writing is even better.

If you raise poultry as part of your operation, the rules around roosters are worth understanding in detail. Our article on rooster laws in Hawaii explains how state and county rules interact. Beekeeping operations should also review our dedicated Hawaii beekeeping law guide for registration and hive management requirements that affect whether your apiary qualifies for Right to Farm protections.

What to Do If You’re Facing a Nuisance Complaint in Hawaii

Receiving a nuisance complaint — whether it comes from a neighbor, a county official, or in the form of a lawsuit — is stressful. But the Right to Farm Act gives you real tools to respond. Here is a practical approach.

Step 1: Do Not Ignore the Complaint

Even if you believe your operation is fully protected, ignoring a complaint can escalate it into formal legal action. Acknowledge the complaint, document when you received it, and begin gathering your records immediately.

Step 2: Invoke the Rebuttable Presumption

No court, official, public servant, or public employee shall declare any farming operation a nuisance for any reason if the farming operation has been conducted in a manner consistent with generally accepted agricultural and management practices. There shall be a rebuttable presumption that a farming operation does not constitute a nuisance. This presumption is your first line of defense. Assert it clearly and early in any response to a complaint or legal filing.

Step 3: Gather Evidence of Accepted Practices

Pull together any records that demonstrate you follow generally accepted agricultural and management practices. This includes farm logs, pesticide application records, veterinary certifications, equipment maintenance records, and any communications with the Hawaii Department of Agriculture or extension service advisors. The more documentation you have, the harder it is for a complainant to overcome the presumption in your favor.

Step 4: Understand the Frivolous Lawsuit Provision

Hawaii’s Right to Farm Act includes a specific provision designed to deter baseless complaints. Any nuisance action found to be frivolous by the court, in which a farming operation is alleged to be a nuisance as defined in section 165-2, shall be governed by section 607-14.5. Section 607-14.5 of the Hawaii Revised Statutes allows courts to award attorney’s fees and costs against the party that brought the frivolous claim. This creates a meaningful financial deterrent for neighbors who file complaints without a legitimate legal basis.

Step 5: Consult an Agricultural Law Attorney

The Right to Farm Act is broadly written, but its application depends on the specific facts of your situation. An attorney familiar with Hawaii agricultural law can help you assess whether your operation qualifies, how to frame your defense, and whether the opposing party’s complaint has any merit that might require operational adjustments.

Common Mistake: Assuming the Right to Farm Act automatically protects every farm activity without any conditions. The law requires that you conduct your operation consistent with generally accepted agricultural and management practices — and that standard will be scrutinized if a complaint reaches court. Document everything.

If the complaint involves animals specifically — such as noise from roosters, concerns about dogs on your property, or questions about livestock near residential areas — it helps to understand the full range of Hawaii animal laws. Our guides on leash laws in Hawaii and kennel zoning laws in Hawaii cover adjacent regulatory areas that sometimes intersect with farm-related disputes. For those starting a poultry operation, our article on tips for starting a backyard poultry farming business offers practical guidance on setting up an operation that stays on the right side of state and county rules.

Hawaii’s Right to Farm Act reflects the state’s genuine commitment to keeping agriculture viable in the face of rapid development. Hawaii has a lengthy definition of farming operations, which includes commercial agricultural operations that pertain to silviculture, aquaculture, livestock production, and planting, cultivating. The law’s broad scope, combined with the rebuttable presumption of non-nuisance, gives qualifying farmers strong legal footing. Use that protection wisely by operating professionally, documenting your practices, and responding promptly to any complaints that arise.