ZEE Certification Guidelines, Regulations, and Application Categories Topics Lawn, Garden & Landscape Equipment Programs Small Off-Road Engines (SORE) Type Information Manufacturers may earn zero-emission equipment (ZEE) credits by producing equipment that follows the Guidelines and Regulations set forth by CARB. Documents ZEE Guidelines and Regulations ZEE GUIDELINES.PDF · 113 KB Related Resources Zero-Emission Commercial Pressure Washers Zero-Emission Commercial Leaf Blowers Zero-Emission Commercial Chainsaws