now, i want to assure you we do do preventative maint nance, but in different forms. i also want to assure you that we rely on traffic signals and marksings and also the signs were not in a state of disrepair. there's no iminnocent sign of collapse. so we are doing it in different forms based on the resources we have and the mechanisms and tools available to us. the most significant item that was pointed out to us was the sign system, the sign inventory. there isn't currently a national standard for reflectivity, how well the signs will reflect in the evening when the headlight shines on them. but we understand that the federal government who prom el gaits the license, which mandates standards and types of usage signs are installed throughout the country, is thinking about establishing some standards for reflectivity in the near future. it's an unfunded mandate, they usually allow several years for us to comply and we would normally do that over time as we do maintenance. one of the impediments is we do not have an up-to-date signed inventory system. the system that w