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S. 2725 · Where this bill is now

In committee

Introduced in the Senate, Sep 4, 2025

What this bill does

In plain words · AI-written from the official summary

Strengthens tracking of dangerous mail shipments

Here's the gist: the original STOP Act required advanced tracking information for packages coming into the U.S. from other countries to catch dangerous items like synthetic opioids. This bill tightens those rules by making it illegal to lie about where a package is actually from, and it stops letting certain countries skip the tracking requirement. The bill also requires the government to test packages more and work with private shipping companies to better detect fentanyl and other dangerous drugs.

How it affects you

This mainly affects people working in law enforcement and border security, who will get new training and tools to stop dangerous drugs at the mail. For most people, the change happens behind the scenes at mail facilities, where packages from other countries will face stricter checks. There's no direct impact on your daily life unless you regularly receive international mail, where inspections might be more thorough.

Read the official summary (Introduced in Senate, Sep 4, 2025)

STOP Act 2.0

This bill revises requirements related to advance electronic data (AED) on international mail shipments. (The STOP Act of 2018 requires international mail shipments coming into the United States to have AED to address the threat of synthetic opioids and other dangerous items.)

Specifically, the bill establishes a new criminal penalty for knowingly misrepresenting the country of origin of an international mail shipment in order to avoid AED requirements.

Additionally, five years after enactment, the bill terminates U.S. Customs and Border Protection's (CBP's) authority to exclude countries from AED requirements.

The bill establishes additional reporting requirements related to AED, including a requirement for the Department of Homeland Security (DHS) to report the results of randomized tests of packages entering the United States.

Further, the bill authorizes DHS, the Department of Justice, and the U.S. Postal Service to enter into partnerships with private parcel services or other private information technology entities to develop technology and processes for identifying the origin of fentanyl, other synthetic opioids, and other narcotics and psychoactive substances.

The bill also authorizes DHS to share with and receive information from foreign governments regarding (1) shippers with a history of transporting illegal substances, and (2) best practices for detecting the substances.

CBP must train its officers in detecting illicit fentanyl and other synthetic opioids.

Finally, the bill directs the Government Accountability Office to evaluate the implementation of the STOP Act of 2018.

Written by AI (Claude) using only the official summary by the Congressional Research Service, the Library of Congress’s nonpartisan research staff. It can miss nuance, so check the official summary and the bill text for details.

119th Congress
1st Session
S. 2725

A BILL

STOP Act 2.0

In the SenateNo vote yet

Sponsor: Sen. Amy Klobuchar (D-MN) · Introduced Sep 4, 2025 · Foreign Trade and International Finance · 1 version of the text

Sources: Congress.gov actions and votes · bill text from GovInfo · latest official action Sep 4, 2025: “Read twice and referred to the Committee on Finance.”

Sections

Sections · 9