47 C.F.R. § 13.215 Question pools.
Title 47 - Telecommunication
The question pool for each written examination element will be composed of questions acceptable to the FCC. Each question pool must contain at least 5 times the number of questions required for a single examination. The FCC will issue public announcements detailing the questions in the pool for each element. COLEMs must use only the most recent question pool made available to the public when preparing a question set for a written examination element.
Title 47: Telecommunication
PART 13—COMMERCIAL RADIO OPERATORS
Examination System
§ 13.215 Question pools.

