These columns tell you how many tether anchors there are in the 2nd row, 3rd row, and the entire vehicle respectively. It shows you both the number of anchors in each row, and which specific locations have tether anchors.If you know there is a particular spot in the car you need to have a forward-facing child sit - maybe for carpool purposes they need to be in 3P - then you can filter the TAs total column to show all the vehicles that have a tether anchor in 3P.The TAs Total column is a helpful way of seeing which vehicles have tether anchors in ALL seating positions. A vehicle like this will give you the most flexibility about where a forward-facing child can sit, since a forward-facing child needs to sit where there is a tether anchor. You can filter this column to show only the vehicles that have "All" - if you want a vehicle that has tether anchors in every spot.