There are a lot of off roaders using modified ham radios for illegal use on cb. Per fcc, cb band cannot exceed 5 watts output
I think 4w actually, but yes, many are modifying their CB radios to pass that. Mine is not. Also, if you monitor cb traffic, you will notice some repetitive "discussion" around a certain south east radio shop. Same voices, same conversation, word for word, many times a day. In other words, a recorded advertisement which is also against FCC rules. Not something they are going to follow up on IMO, ever.