39 CFR § 3055.4 - Internal measurement systems.

---
identifier: "/us/cfr/t39/s3055.4"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "39 CFR § 3055.4 - Internal measurement systems."
title_number: 39
title_name: "Postal Service"
section_number: "3055.4"
section_name: "Internal measurement systems."
chapter_name: "POSTAL REGULATORY COMMISSION"
subchapter_number: "F"
subchapter_name: "PERIODIC REPORTING, ACCOUNTING PRACTICES, AND TAX RULES"
part_number: "3055"
part_name: "SERVICE PERFORMANCE AND CUSTOMER SATISFACTION REPORTING"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "39 U.S.C. 503; 3652; 3653; 3692(b) and (c); 3705."
regulatory_source: "75 FR 38742, July 6, 2010, unless otherwise noted."
cfr_part: "3055"
---


# 3055.4 Internal measurement systems.

Service performance measurements obtained from internal measurement systems or hybrid measurement systems (which are defined as systems that rely on both an internal and an external measurement component) shall not be used to comply with any reporting requirement under subparts A or B of this part without prior Commission approval.