san francisco california lawmaker next week introduce bill require 15 percent vehicles sell state emissions-free 2025 spokeswoman say friday assemblywoman autumn burke say legislation need ensure california current zero emissions vehicle target meet actual vehicles clean car credit environmentalists claim flood market governor jerry brown set ambitious goal 1.5 million electric vehicles 2025 unless take action state come close meet goal say burke represent city inglewood car-centric los angeles county need reform rule require 15 percent cars sell california zero emissions 2025. clean cars credit say statement reuters bill require california air resources board adopt regulation end next year reach 15 percent goal carb years operate zero emission vehicles program help state achieve current level 200,000 zevs road complex system clean car credit design give automakers flexibility meet sales target lead glut credit accord experts environmental group like natural resources defense council electric car manufacturer tesla motor tell carb recent meet auto company may able reach state target simply submit credit say change program credit system require percent vehicles sell california zero emissions vehicles include full battery electric hydrogen fuel cell plug-in hybrids nrdc estimate current rule credit system california would percent vehicles emission-free 2025. california lawmaker float zero emissions vehicle bill