Hemp distributors sit in a uniquely frustrating spot when it comes to insurance. You're moving product from farms to extraction facilities, from warehouses to retail shelves, and every mile and every pallet introduces a new category of risk. A single shipment of hemp flower or CBD distillate can be worth tens of thousands of dollars, and most standard property policies won't touch it. That's where stock through-put coverage enters the picture: a single policy designed to protect inventory from the moment it leaves the farm gate until it reaches the end buyer. For hemp distributors specifically, this type of coverage solves a problem that has plagued the industry for years. Instead of stitching together separate transit, warehouse, and property policies (each with its own gaps and exclusions), through-put insurance wraps everything into one continuous chain of protection. The result is fewer coverage gaps, simpler claims, and often lower total premium costs. But the details matter enormously, especially in 2026, when federal THC thresholds and state-level compliance requirements are shifting fast. If you're distributing hemp products and haven't looked closely at how your inventory is actually insured during every phase of its journey, you're probably carrying more uninsured risk than you realize. This guide breaks down exactly how these policies work, what they cover, and where distributors commonly get burned.

Understanding Stock Through-Put for Hemp Distribution

Stock through-put (STP) policies were originally designed for manufacturers and distributors in industries like food, electronics, and pharmaceuticals, where goods move through multiple stages before reaching the consumer. The concept is straightforward: instead of buying separate insurance for goods in transit, goods in storage, and goods at your distribution facility, you buy one policy that follows the product through every stage. For hemp distributors, this structure is particularly valuable because your product rarely sits still. A typical batch might travel from a farm in Oregon to an extraction lab in Colorado, then to a warehouse in Kentucky, and finally to retailers across a dozen states. Each handoff creates a gap where traditional policies might not apply.

How STP Combines Marine and Inventory Coverage

A standard STP policy blends two types of insurance that are usually sold separately. Inland marine coverage protects goods while they're being transported, whether by truck, rail, or air. Property or inventory coverage protects goods while they're sitting in a warehouse or distribution center. STP policies combine these protections into a single, continuous policy that tracks the product itself rather than the location or the vehicle. Think of it this way: traditional insurance protects places and vehicles. STP insurance protects the product, regardless of where it happens to be at any given moment. For a hemp distributor juggling multiple shipments across state lines, this distinction can mean the difference between a covered loss and a six-figure write-off.

Why Standard Property Insurance Often Excludes Hemp

Here's the uncomfortable truth: most commercial property insurers still classify hemp alongside marijuana in their underwriting guidelines. Even though the 2018 Farm Bill federally legalized hemp, many carriers never updated their exclusion lists, or they added broad "cannabis-related product" exclusions that sweep hemp into the same bucket. The cannabis insurance market is evolving but remains restrictive, with only a handful of carriers willing to write hemp-specific policies. This means a distributor who assumes their standard commercial property policy covers their hemp inventory could file a claim and discover the product was excluded the entire time. It happens more often than you'd think, and it's one of the primary reasons specialized STP coverage exists for this industry.

Core Components of a Hemp STP Policy

A well-structured STP policy for hemp distribution covers three distinct phases of the product lifecycle. Each phase carries different risks, and the policy language needs to address all of them without leaving gaps between stages.

Transit Protection from Farm to Warehouse

The transit phase is where most losses occur for hemp distributors. Temperature fluctuations can degrade CBD potency. Accidents can destroy entire shipments. Theft is a persistent concern, especially for high-value extracts and concentrates. A proper STP policy covers all of these scenarios from the point of origin (the farm or processor) to your receiving dock. The coverage should include goods in the care of third-party carriers, which is critical because most hemp distributors don't own their own trucking fleets. One thing to keep in mind: the policy should specify whether coverage applies during temporary storage at transshipment points, like a freight terminal where goods might sit for 24 to 48 hours between legs of a journey.

Inventory Storage and Catastrophic Loss

Once product reaches your warehouse, the risk profile shifts. Fire, water damage, theft, and spoilage become the primary concerns. A good STP policy covers inventory at full replacement value while it's in storage, including finished goods, raw materials, and work-in-progress if you're doing any processing or packaging on-site. Catastrophic loss coverage is especially important for distributors who concentrate large amounts of inventory in a single location. A warehouse fire that destroys $500,000 worth of CBD isolate can put a small distributor out of business permanently if the loss isn't covered.

Selling and Distribution Logistics Coverage

The final phase covers your product as it moves from your warehouse to the end buyer. This includes deliveries to retail locations, shipments to e-commerce customers, and transfers to other distributors. Coverage during this phase should account for goods in your delivery vehicles, goods temporarily held at customer locations before acceptance, and returned products in transit back to your facility. This last-mile coverage is where many policies fall short, so read the fine print carefully.

Comparing Stock Through-Put to Standard Inland Marine

The difference between STP and traditional insurance isn't just about what's covered: it's about how the coverage is structured and where the gaps appear. For hemp distributors carrying significant inventory value, the structural differences translate directly into financial risk.

Table: STP vs. Traditional Property/Inland Marine

The single-claim advantage alone makes STP attractive. With separate policies, a loss that occurs during a handoff between transit and storage can trigger a dispute between two insurers about whose policy applies. That dispute can delay payment for months.

Managing Risks Unique to Hemp Distributors

Hemp distribution carries risks that don't exist in most other industries. Regulatory compliance, product testing requirements, and the evolving legal status of various cannabinoids all create insurance complications that require specialized attention.

The Impact of THC Thresholds on Claims

This is where things get tricky for distributors in 2026. The Continuing Appropriations and Extensions Act of 2026 (CAEA) mandates a strict 0.4mg total THC cap per container for hemp products, and this threshold directly affects how distributors manage compliance and inventory. If a batch tests above the legal THC limit, it's no longer legally hemp: it's marijuana. And marijuana isn't covered under any standard hemp insurance policy. This creates a scenario where a distributor could have $200,000 worth of product that suddenly becomes uninsurable and potentially illegal to possess. Some STP policies include endorsements that cover the cost of testing, quarantine, and disposal of non-compliant batches. Others exclude any product that tests above the legal threshold, even if the excess THC was caused by natural variation rather than intentional cultivation. GrayStone Insurance Group has seen this exact situation play out with clients who assumed their policy would cover a "hot" batch. The answer depends entirely on the policy language, which is why working with brokers who understand hemp regulatory compliance at a granular level matters so much.

Security Standards for High-Value Storage

Insurers who write hemp STP policies typically require specific security measures before they'll bind coverage. These requirements often include 24/7 video surveillance with at least 30 days of footage retention, access-controlled entry points with electronic logging, climate-controlled storage for temperature-sensitive products, and alarm systems with direct connection to local law enforcement. Meeting these standards isn't optional. Failure to maintain the required security protocols can void your coverage entirely, which means a theft loss at a facility with a broken camera system could result in a denied claim. Many distributors are now investing in local supply chain infrastructure specifically to maintain tighter control over security and compliance at every stage.

Common Questions About Hemp Inventory Insurance

FAQ: Coverage Limits, Costs, and Requirements

How much does stock through-put coverage cost for hemp distributors? Premiums typically range from $0.50 to $2.50 per $100 of inventory value, depending on your loss history, security measures, and the types of products you distribute. Concentrates and extracts cost more to insure than raw flower.

What's the minimum inventory value most carriers will write? Most specialty carriers require at least $250,000 in total inventory value to justify writing an STP policy. Below that threshold, a standard inland marine policy with a hemp endorsement might be more cost-effective.

Does STP coverage include product recall expenses? Not automatically. Product recall coverage is usually available as a separate endorsement, and underwriters in 2026 have specific requirements for hemp businesses seeking this add-on, including documented testing protocols and batch tracking systems.

Will my policy cover losses if hemp regulations change mid-term? Most policies include a regulatory change exclusion, meaning if a product becomes illegal during the policy period, losses related to that regulatory change aren't covered. Some carriers offer limited regulatory risk endorsements, but they're expensive.

Can I get coverage if I distribute Delta-8 or other minor cannabinoids? This depends heavily on your state and your carrier. Some insurers treat all hemp-derived cannabinoids the same, while others exclude specific compounds that face legal challenges in certain jurisdictions.

What This Means for Your Business

Hemp distribution is a business where the gap between being properly insured and being dangerously underinsured can come down to a single policy endorsement or an overlooked exclusion. Stock through-put coverage solves the most common structural problem: the patchwork of separate policies that leave gaps at every handoff point between farm, warehouse, and retail shelf.

The 2026 regulatory environment makes this even more urgent. With the CAEA's THC thresholds creating new compliance risks and carriers still figuring out how to price hemp-specific exposures, getting the right coverage requires working with people who actually understand this industry. GrayStone Insurance Group's team brings decades of experience placing coverage for hard-to-insure businesses, and hemp distribution is exactly the kind of complex risk where that experience pays off.

If your current insurance setup involves multiple policies cobbled together with fingers crossed at the seams, it's time to look at a through-put structure that actually matches how your business operates. One call to the right broker can reveal gaps you didn't know existed, and that call is a lot cheaper than finding out during a claim.