(a)Calculation of Emissions Reduction. The emissions reduction verified for an LSI retrofit emission control system is based on the average of all valid test results, as specified in Sections 2783(g) and 2784(f), before (baseline) and after (control) implementation of the LSI retrofit emission control system. Test results from both the emission testing and durability testing are to be included. If the applicant chooses to perform either the zero hour or the 2500-hour durability baseline test, but not both, those results must be used to calculate the reductions obtained in both the zero hour and 2500-hour control tests.(1) Percentage Reduction. The percentage reduction for a given pair of baseline and control test sets (where a "set" consists of all test cycle repetitions) is the difference between the average baseline and average control emissions divided by the average baseline emissions, multiplied by 100 percent. The average of all such reductions, as shown in the equation below, is used in the verification of an LSI retrofit emission control system. Percentage Reduction=100 x [SUMMATION] [(baselineAVG - controlAVG)/baselineAVG]/Number of control test sets
Where:
| [SUMMATION] | = | sum over all control test sets |
| baselineAVG or controlAVG | = | average of emissions from all baseline or control test repetitions within a given set |
(2) Absolute Emission Level. The absolute emission level is the average control emission level, as defined in the following equation: Absolute Emission Level=[SUMMATION] (controlavg)/Number of control test sets
(b)Categorization of the LSI Retrofit Emission Control System. The Executive Officer shall categorize an LSI retrofit emission control system to reduce HC and NOx emissions based on its verified emissions reductions. An LSI retrofit emission control system that reduces HC and NOx will be assigned its verified percentage reduction or verified emissions reduction level, pursuant to section 2782(f). The Executive Officer may lower the verification level or revoke the verification status of a verified LSI retrofit emission control group if the applicant fails to observe the requirements of Sections 2786 or 2787. The Executive Officer must allow the applicant an opportunity to address the possible lowering or revocation of the verification level in a corrective report to the Executive Officer and the Executive Officer may make this determination based on all relevant information.
Cal. Code Regs. Tit. 13, § 2788
1. New section filed 4-12-2007; operative 5-12-2007 (Register 2007, No. 15). Note: Authority cited: Sections 39002, 39003, 39500, 39600, 39601, 39650- 39675, 40000, 43000, 43000.5, 43011, 43013, 43018, 43105, 43600 and 43700, Health and Safety Code. Reference: Sections 39650- 39675, 43000, 43009.5, 43013, 43018, 43101, 43104, 43105, 43106, 43107 and 43204- 43205.5, Health and Safety Code; and Title 17 California Code of Regulations Section 93000.
1. New section filed 4-12-2007; operative 5-12-2007 (Register 2007, No. 15).