USPS Informed Visibility: What It Is and How to Use It

A plain-language breakdown of USPS Informed Visibility data: what it captures, how the system works, what your mail needs to enable it, and how direct mail teams can put it to practical use.

12 min read Updated 2025 By Amsive Postal Intelligence

What Is USPS Informed Visibility?

USPS Informed Visibility (IV) is a USPS data program that provides near-real-time scan-level tracking data for mail as it moves through the postal processing and delivery network. It is the most comprehensive mail tracking system available for commercial direct mail in the United States.

When a mail piece or mail container is processed at a USPS facility, scanned at a delivery unit, or tracked at a carrier stop, that event is captured and made available through the IV data feed. The result is a detailed picture of where mail is in the postal stream, updated continuously as the campaign moves.

Key PointUSPS Informed Visibility is not an estimate. It is actual scan event data from the postal system, the same data USPS uses internally to track your campaign’s movement through the network.

What IV Data Captures

USPS IV captures scan events at multiple points in the postal processing chain. Here are the primary event types:

Origin Entry: When mail is inducted into the postal stream at an origin processing facility or mailer drop-ship location
Distribution Facility Processing: Scans as mail moves through processing and distribution centers en route to destination facilities
Destination Facility Arrival: When mail arrives at the delivery service center or destination sectional center facility (SCF) serving the destination ZIP codes
Delivery Unit Arrival: When mail arrives at the carrier delivery unit, a strong signal that in-home delivery is imminent
Estimated In-Home Delivery: In some cases, delivery events when the carrier delivers the piece. Note this is a geo-fenced logical scan, not a confirmed physical delivery

MultiTrac^® captures all of these events at the piece level and organizes them into a campaign-level view, so you can see both the granular detail and the big picture.

What Your Mail Needs to Enable IV Tracking

To take advantage of USPS Informed Visibility data, your mail pieces need to carry an Intelligent Mail Barcode (IMb). The IMb is the machine-readable barcode on each piece that links it to USPS tracking systems and enables scan-event data to flow into the IV data stream.

IMb RequirementsEvery mailpiece that will be tracked needs an individual IMb barcode. The barcode encodes a unique identifier for the piece, the mail class, the mailer ID, and other routing information that USPS uses to process and track your campaign.

Most professional direct mail programs are already IMb-encoded, but the level of setup required to actually receive and use IV data is a separate step. MultiTrac^® is flexible: clients can use their existing IMb setup, or Amsive can create and manage IMb encoding, so you can get full IV data access without changing your current production workflow.

The Difference Between Real IV Data and a Generic Estimate

Most direct mail teams that don’t use USPS IV data rely on industry-average delivery tables to estimate in-home windows. These are tables that show expected transit times by mail class and origin/destination pair, and they can be reasonably accurate under normal postal conditions.

The problem is that they don’t know anything about your specific campaign, your specific markets, the current state of postal processing volumes, or any number of factors that affect actual delivery timing. Real IV data does.

When MultiTrac^® tells you that your Northeast market is 94% delivered and your Southwest market is running 1.8 days behind projection, that’s not a table lookup. That’s your actual campaign, reported through the postal system’s own tracking infrastructure.

How Direct Mail Teams Can Use IV Data

Once your program is set up for USPS IV tracking, whether through MultiTrac^® or another platform, here are the primary ways teams put the data to work:

Campaign Monitoring: Watch active campaigns against expected delivery patterns, catching delivery exceptions and pacing issues in real-time
In-Home Timing Intelligence: Use real scan data to build better delivery window predictions, so staffing, digital follow-up, and response planning align with actual mail conditions
Delivery Rate Analysis: Understand campaign delivery rates by geography, mail class, and market, giving you data to explain performance and improve future campaigns
Performance Context: Bring delivery data into post-campaign reviews, to understand whether a weak result came from the message, the audience, or the mail stream

Frequently Asked Questions

Is USPS Informed Visibility available for all mail classes?

IV data is available for Marketing Mail (formerly Standard Mail), First-Class Mail, Periodicals, and Bound Printed Matter, with varying levels of scan event detail by class.

How quickly does IV data update?

USPS IV data is near-real-time. Scan events are typically available within a few hours of when they occur at the postal facility, allowing for active campaign monitoring, not just post-campaign reporting.

Do I need a USPS account or registration to access IV data?

Accessing USPS IV data requires registration with USPS’s Business Customer Gateway and approval for the IV product. Working with a mail service provider like Amsive that has IV data access is often the most practical path for most direct mail programs.

Questions about USPS IV for your program?

Amsive’s postal team can help you understand what IV data access means for your specific program and how MultiTrac^® makes it operational.

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