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If you've recently completed a LiveScan fingerprinting appointment in Florida, you may have heard the term "TCN number" and wondered what it means and why it matters. This guide will walk you through everything you need to know about your TCN. What is a TCN Number? A TCN, or Transaction Control Number, is essentially a serial number for your background screening. Every time someone gets fingerprinted through Florida's LiveScan system, a unique TCN is generated for that transa