Harmonized Tariff Schedule of the United States · HTS code · HS 9020.00
9020.00.40: Underwater breathing devices designed as a complete unit to be carried on the person and not requiring attendants
Breathing appliances and gas masks
Not declarable on its own: use one of its 1 subdivisions Data: Harmonized Tariff Schedule of the United States · checked on 24 October 2026
- 9020.00 Other breathing appliances and gas masks, excluding protective masks having neither mechanical parts nor replaceable filters; parts and accessories thereof:
- 9020.00.40 Underwater breathing devices designed as a complete unit to be carried on the person and not requiring attendants
What you pay
Importing into USA
US additional duties of HTS chapter 99 in force on 22 October 2026 are included (Section 301, 232, 338 and 201). IEEPA duties are no longer collected after the Supreme Court ruling of February 2026. Conditional exemptions (US content, end use, metal share) are not computed: check the provision.
Additional duties and import rules
Charges on top of the customs duty, and rules the goods must meet at the border.
No additional measures recorded for this origin.
Same subheading in other tariffs
UK Free Third-country duty 5 tariff lines 
EU 1.7% Third-country duty 2 tariff lines 
Türkiye 1.7% Third-country duty 2 tariff lines 
Canada Free Third-country duty 1 tariff line 
Mexico Free – 10% Third-country duty 4 tariff lines · average 5% 
Brazil Free – 14.4% Third-country duty 2 tariff lines · average 7.2% 
Argentina Free – 16% Third-country duty 4 tariff lines · average 8% 
Peru Free Third-country duty 1 tariff line 
New Zealand Free Third-country duty 1 tariff line 
Japan Free Third-country duty 1 tariff line 
Taiwan 3% Third-country duty 8 tariff lines 
GCC 5% Third-country duty 4 tariff lines 
Switzerland Free Third-country duty 1 tariff line 
Norway Free Third-country duty 1 tariff line 
North Macedonia Free Third-country duty 2 tariff lines 
Nigeria Free Third-country duty 1 tariff line USA lines: 9020.00
Binding rulings for similar goods
Decisions of U.S. Customs and Border Protection (CROSS) and HMRC (Advance Tariff Rulings) on goods classified here. A ruling binds only its holder, but shows how the authorities classify similar goods. The descriptions are the authorities’ own, in English.
- N324263 U.S. CBP
The tariff classification of a full body protective suit from the Czech Republic
- N317068 U.S. CBP
The tariff classification of the M3 Mask from Serbia
- N292676 U.S. CBP
The tariff classification of respirator masks imported from Hong Kong
- 600011147 HMRC
Closed circuit breathing apparatus. The breathing unit is worn on the users back and supplies up to four hours of air even in toxic atmospheres. The positive pressure breathing circuit protects the user from hazardous substances entering the sealed breathing unit and the CO2 absorber removes…
Legal notes
In the Harmonized Tariff Schedule of the United States, 9020.00.40 is one of 3 lines under subheading 9020.00, other breathing appliances and gas masks.
The general duty is free, and quantities are declared in p/st.
For the same subheading, the UK duty is free, the EU duty is 1.7%, the Türkiye duty is 1.7%, the Canada duty is free, the Mexico duty is 0%–10%, the Brazil duty is 0%–14.4%, the Argentina duty is 0%–16%, the Peru duty is free, the New Zealand duty is free, the Japan duty is free, the Taiwan duty is 3%, the GCC duty is 5%, the Switzerland duty is free, the Norway duty is free, the North Macedonia duty is free and the Nigeria duty is free.
The United States imported goods of subheading 9020.00 worth US$275m in 2024; the largest supplier was France, and the United Kingdom ranked 2nd with US$57m.
Questions and answers
What is the USA import duty for HTS code 9020.00.40?
The general duty in the Harmonized Tariff Schedule of the United States is free; the supplementary unit is p/st. Preferential rates for goods from agreement countries, anti-dumping duties and VAT are not included.
Where does the United States import these goods from?
For subheading 9020.00 as a whole, the largest supplier in 2024 was France (US$64m), followed by the United Kingdom.
Typical products
Everyday names, not part of the legal text.