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GOODS ACROSS BORDERS

HS HEADING 8540

Thermionic, cold cathode or photo-cathode valves and tubes (e.g. vacuum, vapour, gas filled valves and tubes, mercury arc rectifying valves and tubes, cathode-ray and television camera tubes)

In plain English

This heading covers thermionic, cold cathode, and photo-cathode valves and tubes, such as vacuum, gas-filled, and mercury arc rectifying types, as well as cathode-ray and television camera tubes. The subheadings organize these items by specific function and technology, distinguishing between color and monochrome television picture tubes, television camera tubes, and various data or graphic display tubes. Further divisions separate microwave tubes like magnetrons and klystrons from general receiver or amplifier valves, while also categorizing parts based on whether they belong to cathode-ray tubes or other valve types.

PARAPHRASE OF THE OFFICIAL HS 2022 TEXTS BELOW — NOT LEGAL ADVICE

6-digit subheadings (11)

Official HS 2022 subheading texts. National tariff schedules subdivide these further (8-10 digit lines) and set the actual duty rates.

8540.11

Tubes; cathode-ray television picture tubes, including video monitor cathode-ray tubes, colour

8540.12

Tubes; cathode-ray television picture tubes, including video monitor cathode-ray tubes, monochrome

8540.20

Tubes; television camera tubes, image converters and intensifiers, other photo-cathode tubes

8540.40

Tubes; data/graphic display tubes, monochrome; data/graphic display tubes, colour, with a phosphor dot screen pitch smaller than 0.4mm

8540.60

Tubes; cathode ray, n.e.c. in heading no. 8540

8540.71

Tubes; microwave, magnetrons, excluding grid-controlled tubes

8540.79

Tubes; microwave (for example klystrons, travelling wave tubes, carlinotrons), excluding magnetrons and grid-controlled tubes

8540.81

Valves and tubes; receiver or amplifier

8540.89

Valves and tubes; n.e.c. in heading no. 8540

8540.91

Tubes; parts of cathode-ray tubes

8540.99

Valves and tubes; parts of the valves and tubes of heading no. 8540, excluding parts of cathode-ray tubes

Chapter 85 classification notes

High-value electronics. Many products duty-free under ITA/ITA-2. Anti-dumping duties on solar panels from China in US and EU. Lithium battery transport regulations (IATA DGR) apply in addition to customs. CE/FCC/UKCA marking requirements.

Frequent misclassification in this chapter

Many importers confuse 85 (electrical) and 84 (mechanical). A device with both elements usually classifies by principal function. Chargers and adapters classified separately from the device they charge.

Classification certainty

The 6-digit level shown here is the internationally harmonised layer. Duty rates attach to national 8-10 digit tariff lines, which differ by country — use the duty calculator for lane estimates. For binding certainty, request a ruling from the destination customs authority.

Binding tariff ruling database

Other headings in Chapter 85

RULES5,339COUNTRIES85ITEMS111CARRIERS28GUIDES46UNIQUE SOURCES645LATEST VERIFICATION2026-07-26MethodologyChangelog