Pricing & Classification DMM Advisory

Message board to keep postal customers informed of changes to mailing standards, services, and prices.

January 16, 2015

IMpb Compliance Thresholds Effective January 25, 2015

In the Federal Register notice final rule, New Standards to Enhance Package Visibility (78CFR, 76548-76560), dated December 18, 2013, the Postal Service™ announced the threshold requirements for mailers to comply with Intelligent Mail® package barcodes (IMpb). This notice is a reminder that the new IMpb thresholds and the meter compliance requirements are effective January 25, 2015. See the entire notice on the Federal Register site at

The table below shows the thresholds and the respective dates for implementation.

IMpb Compliance Thresholds

September 7, 2014

January 25, 2015

Unique trackable barcode (legacy or IMpb)



*IMpb only by January 25, 2015

Destination Delivery Address/11-Digit Delivery Point Validation (DPV®) ZIP Code®/ZIP + 4® in file



**Street address/11-Digit DPV code by January 25, 2015

Shipping Services File (SSF) v 1.6 or higher (v 1.3, v 1.5 permitted)



***SSF v 1.6 or higher ONLY by January 25, 2015