Qualification testing
Primary source
Verbatim text below is from the Electronic Code of Federal Regulations (eCFR), a public-domain U.S. government work. Always verify the current version with the eCFR before relying on it for any legal matter.
Full Text
(a) Testing. Before any manufacturer or importer of CB antennas which are subject to the standard distributes them in commerce, one or more samples of each model shall be tested to determine that all such antennas manufactured after the effective date of the standard will comply with the standard. The type of tests and the manner of selecting samples shall be determined by the manufacturer or importer to provide a reasonable assurance that all antennas subject to the standard will comply with the standard. Any or all of the qualification testing required by this paragraph may be performed before the effective date of the standard.
(b) Product modifications. If any changes are made to a product, after initial qualification testing, that could affect the ability of the product to meet the requirements of the standard, additional qualification tests must be made before the changed antennas are manufactured for sale or distributed in commerce.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.