47 CFR § 5.503 - Scope of testing activities.

---
identifier: "/us/cfr/t47/s5.503"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "47 CFR § 5.503 - Scope of testing activities."
title_number: 47
title_name: "Telecommunication"
section_number: "5.503"
section_name: "Scope of testing activities."
chapter_name: "FEDERAL COMMUNICATIONS COMMISSION"
subchapter_number: "A"
subchapter_name: "GENERAL"
part_number: "5"
part_name: "EXPERIMENTAL RADIO SERVICE"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "47 U.S.C. 154, 301, 302, 303, 307, 336."
regulatory_source: "78 FR 25162, Apr. 29, 2013, unless otherwise noted."
cfr_part: "5"
---


# 5.503 Scope of testing activities.

The authority of a compliance testing experimental license is limited to only those testing activities necessary for device certification (including antenna calibration, test site validation, proficiency testing, and testing in an Open Area Test Site); *i.e.,* compliance testing experimental licensees are not authorized to conduct immunity testing.