California Code of Regulations
Title 13 - Motor Vehicles
Division 3 - Air Resources Board
Chapter 15 - Additional Off-Road Vehicles and Engines Pollution Control Requirements
Article 1 - Evaporative Emission Requirements for off-Road Equipment
Section 2754.2 - Validation Study

(a) in 2010 for the years 2008, 2009 and 2010 and (b) in 2015 for the years 2013, 2014 and 2015.

(c) For each year in the study, the Executive Officer will select engine and/or equipment evaporative families and request, from the certificate holder, one production unit from each identified family from production inventory according to a method specified by the Executive Officer. Diurnal testing of each selected unit (including the complete evaporative emission control system) will be conducted pursuant to TP-902, including pre-conditioning. Unless otherwise directed by the Executive Officer, three data points will be generated and submitted to the Executive Officer for each engine and / or equipment tested.

(d) The number of data points and equipment to be tested for this validation study is as follows:

(e) The costs for testing engines or equipment certified under the design-based element of the validation study are the responsibility of the certificate holder. The costs for testing engines or equipment certified under the performance-based element of the validation study are the responsibility of CARB. For each of the years 2010 and 2015, the Executive Officer will also review the annual performance-based and design-based certification submissions for that year and two prior years (i.e., 2010, 2009, 2008 for the 2010 validation and 2015, 2014, 2013 for the 2015 validation) to supplement this validation study.

(f) The Executive Officer will evaluate the data collected and, based on reasonable criteria, make a determination whether the performance-based option in section 2754(a) and the design-based option in section 2754(b) are achieving CARB's overall emission reduction goals. In making this determination, the Executive Officer will consider, among other things, whether a particular product tested is in full compliance with the underlying standards and whether the product configurations are non-representative (i.e., large tanks).