The primary distinction of ANSI 207 versus ANSI 107 lies in the amount of fluorescent background material. ANSI 207 requires a minimum of 450 in2. This would fall between ANSI 107 Class 1 (217 in2) and Class II (775 in2) garments. The minimum amount of required retroreflective area (207 in2) did not change from ANSI 107 and 207. The ANSI 207-2006 regulations that took effect in November 2008 mainly affect public service officials. The color codes are for distinction among public safety departments in emergency response incidents. Another key distinction of an ANSI 207 vest compared to ANSI 107-2004 is the shorter and break-away design. The shorter design of an ANSI 207 vest allows quicker access to tools or weapons that may be carried by police officers, EMS and emergency response personnel. The break-away design of an ANSI 207 vest is a vital safety feature that prevents entanglement. If you have questions regarding ANSI 207-2006 or ordering ANSI 207 vests feel free to call 1-877-899-SAFE.