California Code of Regulations › Title 13 - Motor Vehicles › Division 3 - Air Resources Board › Chapter 13 - Voluntary Accelerated Vehicle Retirement Enterprises › Article 1 - Voluntary Accelerated Light-Duty Vehicle Retirement Enterprises › Appendix D

Current through Register 2024 Notice Reg. No. 28, July 12, 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.
1. New
					 appendix D filed 1-3-2003; operative 1-3-2003 pursuant to Government Code
					 section
					 11343.4
					 (Register 2003, No. 1).
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).