The Product
- An enclosure kit that stores and secures spliced fiber optic cables.
- Multiple splice trays sit inside a weatherproof dome cover that is clamped and sealed to a base endplate.
- Has no active electrical components that send or receive data.
- Separately imported components: 250 bench adapter, two hinge adapters, bench clamp fixture, dome cover and dome clamp assembly, all molded plastic.
CBP's Ruling
| Item | HTS code | CBP's description of the line |
|---|---|---|
| OC 250 Dome Splice Closure Kit | HTS 9013.90.8000 | [l]asers, other than laser diodes; other optical appliances and instruments, not specified or included elsewhere in this chapter: [p]arts and accessories: [o]ther: [o]ther. |
| Molded plastic components imported separately | HTS 3926.90.9989 | [o]ther articles of plastics and articles of other materials of headings 3901 to 3914: [o]ther: [o]ther: [o]ther. |
Explanation
CBP found the kit similar to the fiber optic enclosure in ruling N331709 and classified it the same way, under heading 9013. That heading covers optical appliances and instruments not specified or included elsewhere in its chapter.
CBP considered the molded plastic components, when imported separately, to be articles of plastic. No other heading covers them more specifically, so they fall in heading 3926.
Headings CBP ruled out
- Data transmission apparatus (the supplier's proposed line): CBP said that line covers active apparatus that receives, converts and transmits a data signal. A passive, nonelectrical article like this kit doesn't belong in that heading.
The letter also notes. CBP also ruled that simple assembly of the molded components into the finished kit doesn't substantially transform them, so both keep the origin of the country where the components were molded.
Does this apply to your product?
It likely does if you can answer yes to each of these:
- Is it a fiber optic splice enclosure that stores and secures spliced cables, or a molded plastic component of one?
- Is it passive, with no active electrical parts that send or receive data?
- Is it the complete closure kit (9013.90.8000), or a molded plastic component imported alone (3926.90.9989)?
A no to any of them can mean a different code. A licensed broker can classify your product.
The codes today
| HTS code | In today's schedule | Where it sits | Today's duty |
|---|---|---|---|
| 3926.90.9989 | ✓ Still in the schedule | Heading 3926 | Today's duty from China |
| 9013.90.8000 | ✓ Still in the schedule | Heading 9013 › Parts and accessories | Today's duty from China |
Checked against today's tariff schedule. The duty calculator opens with the code and country filled in.
Related rulings
N331709 is the fiber optic enclosure ruling CBP followed in placing the kit under heading 9013. N342577, N355743 and N359104 also classified plastic articles or components under 3926.90.9989.
- N329793December 20, 2022Plastic helmet components from China3926.90.9985
- N342577October 1, 2024Plastic multimedia enclosure from China3926.90.9989
- N332677May 18, 2023Five plastic components from China3923.50.0000, 3926.90.9985
- N339551May 8, 2024Molded plastic components from China3926.90.9985
- N355743November 21, 2025Plastic test strip components from Malaysia3926.90.9989
- N331709April 19, 2023Fiber optic enclosures and parts from China3923.50.0000, 3926.90.9985, 7616.99.5190, 9013.90.8000
- N326895July 20, 2022Plastic battery adapter housing components from China3926.90.9985
- N359104March 19, 2026Plastic film holding device and components from the United Kingdom3926.90.9989
Borderless, a licensed U.S. customs brokerage, summarized CBP ruling N360882 in plain English and checked its codes against the letter and today's tariff schedule. A ruling applies only to goods that match its facts; our terms explain the rest. Terms