SORE - Fuel Tank Certification Documents Application Form and Guideline Categorías Topics Lawn, Garden & Landscape Equipment Programs Small Off-Road Engines (SORE) Tipo Information Contact Small Off-Road Engine Correo electrónico sore@arb.ca.gov CARB staff developed these documents to assist manufacturers with the application process for the certification of fuel tanks for use in SORE. Related Resources General Purpose Power Units Zero-Emission Concrete Polishing Equipment Zero-Emission Commercial Pressure Washers