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Updated September 19, 2026

What is the HTS code for a microwave baby bottle sterilizer bag?

HTS code

3924.90.5650

CBP classified a reusable silicone plastic sterilizer bag, used in a microwave to steam clean breast pump and baby bottle parts, under HTS 3924.90.5650 in ruling N350577. That line covers other household articles and hygienic articles of plastics within heading 3924.

  • Made in Vietnam
  • CBP ruling N350577
  • July 14, 2025
  • Current
Today's duty from Vietnam

The Product

  • Oval bag with a flat bottom, made of silicone plastic, with a foamed polypropylene plastic handle.
  • About 8.7 inches high with the handle up, 8.7 inches wide and 5.7 inches deep.
  • Reusable, with a latch that seals it shut.
  • Made for microwave sterilization: the user adds two ounces of water, puts in breast pump and baby bottle parts, closes the latch and microwaves it on high.
  • The breast pump and baby bottle parts are not included.

CBP's Ruling

ItemHTS codeCBP's description of the line
Plastic sterilizer bag, item number B11659HTS 3924.90.5650Tableware, kitchenware, other household articles and hygienic or toilet articles, of plastics: Other: Other. Other.

Explanation

Heading 3924 names tableware, kitchenware, other household articles and hygienic or toilet articles of plastics. CBP placed the sterilizer bag on the heading's line for other articles; the bag is made of silicone plastic with a foamed polypropylene handle, and it's used in a microwave to steam clean breast pump and baby bottle parts.

Does this apply to your product?

It likely does if you can answer yes to each of these:

  • Is it a reusable bag made of silicone plastic?
  • Is it made to steam clean baby bottle or breast pump parts in a microwave?
  • Does it close with a latch to hold the parts and water inside?
  • Is it sold on its own, without the bottle or pump parts?

A no to any of them can mean a different code. A licensed broker can classify your product.

The code today

HTS codeIn today's scheduleWhere it sitsToday's duty
3924.90.5650✓ Still in the scheduleHeading 3924Today's duty from Vietnam 

Checked against today's tariff schedule. The duty calculator opens with the code and country filled in.

Related rulings

N283412 puts plastic planters on the same line. The other rulings in the list cover other plastic articles: a plastic bank (N335041, N336953), a plastic box (N339293), a plastic bucket (N326453, N355697), a plastic vase (N338371) and plastic bowls (N346001).

  • N283412March 8, 2017Plastic planters from Vietnam3924.90.5650
  • N335041September 7, 2023Plastic bank from China3924.90.5650
  • N339293April 10, 2024Plastic box from China3924.90.5650
  • N355697November 14, 2025Plastic bucket from Denmark3924.90.5650
  • N326453June 9, 2022Plastic bucket from China3924.90.5650
  • N336953December 8, 2023Plastic bank from China3924.90.5650
  • N338371March 7, 2024Plastic vase from China3924.90.5650
  • N346001March 11, 2025Plastic bowls from China3924.90.5650
Read CBP's full ruling N350577 The letter as CBP published it, on rulings.cbp.gov

Borderless, a licensed U.S. customs brokerage, summarized CBP ruling N350577 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