California has approved the first state tire efficiency standards, which supporters say could save drivers $1 billion a yearPoliticsSep 17 at 4:45 AM – Sep 17 at 8:57 AM7 outletsUnited StatesBoston HeraldNew tire efficiency rules could save drivers $1B a year Sep 17 at 4:45 AMHartford CourantNew tire efficiency rules could save drivers $1B a year Sep 17 at 4:45 AMOrlando SentinelNew tire efficiency rules could save drivers $1B a year Sep 17 at 4:45 AMSouth Florida Sun SentinelNew tire efficiency rules could save drivers $1B a year Sep 17 at 4:45 AMThe Baltimore SunNew tire efficiency rules could save drivers $1B a year Sep 17 at 4:45 AMThe Mercury NewsNew tire efficiency rules could save drivers $1B a year Sep 17 at 1:45 AMThe San Diego Union-TribuneNew tire efficiency rules could save drivers $1B a year Sep 17 at 1:45 AM