You’ll need the vehicle’s SA registration plate number or VIN number to be able to check its rego. Click here to run a free SA rego check on the EZReg South Australia website . Step 1: Enter vehicle details. Type . Vehicle. Boat. Plate Number. Loading... Step 2: Choose your vehicle. The plate number entered is linked to two or more vehicles. Loading... Step 2: View details. Registration Details. The information shown is the latest available at the time of enquiry. What is an SA Rego Check? An SA rego check is a free service provided by the South Australian government and Service SA called EzyReg , allowing you to check the current registration status of any vehicle registered in SA. Access the best quote of the day ! Get inspired each day with the best quotes about life, wisdom, inner peace, happiness (and more!)