"Frank, long time no hear, what's up?" "I need a GPS Bill, I'm maybe thinking about racing one of my boats in a new class." "Okay I guess, but's what's wrong with your Garmin 545?" "It doesn't meet the rules Bill?" "What do you mean it doesn't meet the rules, does it need to be newer?" "No, it has to be older. The rules say," The following is the SBIP APPROVED LIST OF GARMIN GPS’S 172, 172C, 178, 178C, 182, 182C, 188, 188C, 192, 192C, 198, and 198C. "Crimniy Frank, none of these are even manufactured anymore."