12 months is the ideal age for starting SAR work with your dog. I started a blk lab last year at 6 months, he is now certified for air scent at 14 months. But I already had allot of experience training sar dogs. It is harder to train the handlers than it is to train the dogs. Handler must understand UTM and able to plot locations on a map using a grid reader. CPR, K9 first aid, Navigation, Basic first aid, basic SAR, are all things the handler need to be certified in. The days of farmer Joe showing up at a rescue sight with his coon dog and going on a search is over. Also K9 handlers who want to train their dogs in SAR work because they think he will be good exercise for the dog don't usually last long on a professional SAR team after seeing what is realy involved.