The U.S. Customs and Border Protection have published a Notice of Proposed Rulemaking (NPRM):
"CBP proposes to make merchandise that is subject to specified trade or national security actions ineligible for this administrative exemption and to require that certain shipments claiming this exemption provide the 10-digit Harmonized Tariff Schedule of the United States (HTSUS) classification of the merchandise."
Please see the links below for more information including how to submit feedback.
Link to the Federal Register site:
Freightwaves news article:
"Currently, merchandise subject to quotas or antidumping and countervailing duties are not eligible for the de minimis administrative exemption, but goods subject to Section 201, 232 and 301 tariffs may still claim the exemption. CBP is now proposing to exclude those goods from de minimis, meaning that if they are covered by the 301 tariffs they would require a formal entry and payment of duty of up to 25% of the value."