Cal. Code Regs. Tit. 13, div. 3, ch. 13, art. 1, app D
Current through Register 2024 Notice Reg. No. 50, December 13, 2024
VOLUNTARY ACCELERATED LIGHT-DUTY VEHICLE RETIREMENT PROGRAM DEFAULT EMISSION REDUCTIONS
ARB shall annually calculate the emission reductions for voluntary accelerated vehicle retirement. By December 31 of each year, ARB shall calculate the emission reductions for vehicles retired in the next calendar year and shall make them publicly available in tabular form. For exhaust (tailpipe) emissions, the following equation is used to calculate emission reduction credits. Exhaust emission reduction credits may be generated from reductions in oxides of nitrogen (NOx), reactive organic gas (ROG), carbon monoxide (CO), and particulate matter (PM): ExhReduction=[(ERretired * VMTretired) - (ERreplacement * VMTreplacement)] * Liferetired
| where: | ||
| ExhReduction | = | total emission reduction for tailpipe emissions (grams/life); |
| ERretired | = | the retired vehicle exhaust emission rate (grams/mile) |
| = | the average exhaust emission rate of the model year vehicle retired calculated using ARB's emission inventory model; | |
| VMTretired | = | the retired vehicle miles traveled (miles/year) |
| = | the average VMT of the model year vehicle retired calculated using ARB's emission inventory model; | |
| Liferetired | = | the retired vehicle remaining life (years) |
| = | 3 years; | |
| ERreplacement | = | the replacement vehicle exhaust emission rate (grams/mile) |
| = | the fleet average exhaust emission rate calculated using ARB's emission inventory model; | |
| VMTreplacement | = | the replacement vehicle miles traveled (miles/year) |
| = | VMTretired |
For evaporative emissions, the following equation is used to calculate emission reduction credits. Evaporative emission reduction calculations apply only to ROG emissions:
| EvapReduction | = | {[(ERrunloss)retired - (ERrunloss)replacement] * VMTretired + |
| [(ERhotsoak)retired - (ERhotsoak)replacement] * Tripsretired + | ||
| [(ERdiurnal)retired - (ERdiurnal)replacement] * 365 days/year + | ||
| [(ERresting)retired - (ERresting)replacement] * 365 days/year} * Liferetired | ||
| where: | ||
| EvapReduction | = | total lifetime reduction of evaporative ROG emissions (grams/life); |
| (ERrunloss)retired | = | the retired vehicle running loss evaporative emission rate (grams/mile) |
| = | the average running loss evaporative emission rate of the model year vehicle retired calculated using ARB's emission inventory model; | |
| (ERrunloss)replacement | = | the replacement vehicle running loss evaporative emission rate (grams/mile) |
| = | the fleet average running loss evaporative emission rate calculated using ARB's emission inventory model; | |
| (ERhotsoak)retired | = | the retired vehicle evaporative emission rate attributed to hot soak after shut down (grams/trip) |
| = | the average hot soak evaporative emission rate of the model year vehicle retired calculated using ARB's emission inventory model; | |
| (ERhotsoak)replacement | = | the replacement vehicle evaporative emission rate attributed to hot soak after shut down (grams/trip) |
| = | the fleet average hot evaporative emission rate calculated using ARB's emission inventory model; | |
| (ERdiurnal)retired | = | the retired vehicle emission rate for evaporative emissions occurring while vehicle is not operating and during periods of ambient temperature increase (grams/day) |
| = | the average diurnal evaporative emission rate of the model year vehicle retired calculated using ARB's emission inventory model; | |
| (ERdiurnal)replacement | = | the replacement vehicle emission rate for evaporative emissions occurring while vehicle is not operating and during periods of ambient temperature increase (grams/day) |
| = | the fleet average diurnal evaporative emission rate calculated using ARB's emission inventory model; | |
| (ERresting)retired | = | the retired vehicle emission rate for evaporative emissions occurring while vehicle is not operating and during periods of constant or decreasing ambient temperature (grams/day) |
| = | the average resting evaporative emission rate of the model year vehicle retired calculated using ARB's emission inventory model; | |
| (ERresting)replacement | = | the replacement vehicle emission rate for evaporative emissions occurring while vehicle is not operating and during periods of ambient temperature increase (grams/day) |
| = | the fleet average resting evaporative emission rate calculated using ARB's emission inventory model; | |
| Tripsretired | = | number of trips per year expected from retired vehicle |
| = | the average trips of the model year vehicle retired calculated using ARB's emission inventory model. |
Cal. Code Regs. Tit. 13, div. 3, ch. 13, art. 1, app D
2. Redesignation of former appendix D as appendix C and redesignation of former appendix B as new appendix D, including repealer and new appendix heading and appendix, filed 7-13-2007; operative 8-12-2007 (Register 2007, No. 28).
2. Redesignation of former appendix D as appendix C and redesignation of former appendix B as new appendix D, including repealer and new appendix heading and appendix, filed 7-13-2007; operative 8-12-2007 (Register 2007, No. 28).