SCAQMD RULE 1501-1 ALTERNATIVES TO WORK TRIP RED. PLANS
LAST REVEISED 04/14/1995

(Adopted April 14, 1995)

RULE 1501.1. ALTERNATIVES TO WORK TRIP REDUCTION PLANS

(a) Purpose

The purpose of this Rule is to provide alternatives to compliance with Rule 1501 that will produce equivalent emission reductions of reactive organic gases (ROG), nitrogen oxides (NOX), and carbon monoxide (CO).

(b) Applicability

Effective July 1, 1995, this rule applies to employers subject to the provisions of Rule 1501.

(c) Definitions

For the purposes of this rule, the following definitions shall apply:

(1) AIR QUALITY INVESTMENT PROGRAM is an option for employers that have between 100 and 200 employees per worksite, in which monies collected from employers, on an annual basis, are used to fund trip or mobile source emissions reduction programs that have been approved by the SCAQMD Governing Board.

(2) ALTERNATIVE EMISSIONS REDUCTION STRATEGY is any emissions or trip reduction equivalent method implemented by individual employers seeking to meet an emissions reduction equivalency target or an emissions equivalent AVR.

(3) AVERAGE VEHICLE RIDERSHIP (AVR) is the number of employees scheduled to report to work during the window for calculating AVR, divided by the number of vehicles arriving at the worksite during the same period.

(4) AVR BASE is the AVR or aggregate AVR determined according to the provisions of Rule 1501 subdivision (n) and verified in accordance with Rule 1501 paragraph (n)(5), or as provided for in paragraph (e)(2) of this rule.

(5) AVR SHORTFALL is the positive difference between the daily commute vehicles used from the AVR base and the daily commute vehicles used when an employer meets the AVR target, expressed as a fraction, and determined according to the following equation:

AVR BASE

___________

AVR SHORTFALL = 1 -

AVR TARGET

(6) AVR TARGET is defined by Rule 1501 paragraph (c)(5).

(7) DAILY COMMUTE VEHICLES is the estimated average number of vehicles used to transport employees to work during the window for calculating AVR, during the course of one day, relative to the AVR base, and determined according to the following equation:

Employees*

_________

DAILY COMMUTE VEHICLES =

AVR BASE

Where: Employees* = Average Daily Number of Employees Reporting to Work in the Window for Calculating AVR.

(8) EMISSIONS EQUIVALENT AVR (EE AVR) is the number of employees scheduled to report to work during the window for calculating AVR, divided by the emissions adjusted number of vehicles arriving at the worksite during the same period, determined according to the provisions of paragraph (e)(3) of this rule.

(9) EMISSIONS REDUCTION TRIP EQUIVALENCY CREDIT (ERTEC) is the accounting of vehicle trip reductions through the reduction of NOX, ROG, and CO emissions, expressed as the daily number of commute vehicles reduced, and determined according to the provisions of paragraph (e)(4) of this rule.

(10) EMISSIONS REDUCTION EQUIVALENCY TARGET (ERET) is the annual NOX, ROG, and CO emissions required to be reduced based on an AVR target, and determined in accordance with the provisions of paragraph (e)(1) of this rule.

(11) EMPLOYEE is any person as defined in Rule 1501 paragraph (c)(15).

(12) MOBILE SOURCE EMISSION REDUCTION CREDITS (MSERCs) are real, quantified, emission reductions, approved by the Executive Officer, that can be used to comply with stationary source emission reductions as required by District Regulations, as authorized by Regulation XVI, Mobile Source Offset Programs.

(13) NITROGEN OXIDES (NOX) is the sum of nitric oxides and nitrogen dioxides, collectively expressed as nitrogen dioxide.

(14) OLD VEHICLE SCRAPPING is a program in which old vehicles are scrapped in exchange for MSERCs, as provided for in Rule 1610.

(15) REACTIVE ORGANIC GAS (ROG) is any gaseous chemical

compound which contains the element carbon; excluding carbon monoxide, carbon dioxide, carbonic acid, carbonates and metallic carbides; and excluding methane, 1,1,1-trichloroethane, methylene chloride, trifluoromethane (FC-23), trichlorotrifluoroethane (CFC-113), dichlorodifluoromethane (CFC-12), trichlorofluoromethane (CFC-11), chlorodifluoromethane (HCFC-22), dichlorotetrafluoroethane (CFC-114), chloropentafluoroethane (CFC-115), dichlorotrifluoroethane (HCFC-123), tetrafluoroethane (HCFC-134a), dichlorofluoroethane (HCFC-141b), and chlorodifluoroethane (HCFC-142b).

(16) REMOTE SENSING is an alternative emissions reduction strategy in which gross-polluting vehicles are identified by exhaust gas analyzers that measure absorption changes in the infrared or ultraviolet light region that correlate to exhaust emissions levels. Emissions reductions resulting from the subsequent repair of the identified vehicles can be used to meet an emissions reduction trip equivalency target or can be converted to emission reduction trip equivalency credits and used to meet an emission equivalent AVR, according to the provisions of subdivision (d).

(17) TRANSPORTATION MANAGEMENT ASSOCIATION OR TRANS-PORTATION MANAGEMENT ORGANIZATION (TMA/TMO) is a private/non-profit association that has a financial dues structure joined together in a legal agreement for the purpose of achieving mobility and air quality goals and objectives within a designated area.

(18) VEHICLE TRIP REDUCTION EQUIVALENCY CREDIT (VTREC) is the accounting of vehicle trip reductions through the reduction of work-related trips, and alternative fuel vehicle conversions expressed as the daily number of commute vehicles reduced, and determined according to the provisions of paragraph (e)(5) of this rule.

(19) WINDOW FOR CALCULATING AVR is defined by Rule 1501 paragraph (c)(43).

(20) WORK-RELATED TRIP is any employee trip that is neither a return trip home nor a trip to work occurring during the window for calculating AVR.

(d) Compliance Alternatives

Employers may choose to operate under an Alternative I or Alternative II program in lieu of compliance with the provisions of Rule 1501, or may choose to operate under an Alternative III program in lieu of meeting the AVR target of Rule 1501, according to the following provisions:

(1) Alternative I - Emissions Equivalency Option

In lieu of complying with the provisions of Rule 1501, employers may implement alternative emissions reduction strategies that produce emissions reductions which meet or exceed the emission reduction equivalency targets, determined according to paragraph (e)(1) of this rule, for ROG, NOX, and CO. Employers shall request pursuant to subdivision (f) of this rule and receive written approval from the Executive Officer for any alternative emissions reduction strategy prior to implementation. The Executive Officer shall approve strategies that meet the requirements of subparagraphs (d)(1)(A), (d)(1)(B), or (d)(1)(C) of this rule, that can reasonably be expected to meet or exceed the applicable emission reduction equivalency target, and that comply with the requirements of subdivision (f) of this rule. Alternative emissions reduction strategies may include any of the following:

(A) Old Vehicle Scrapping/Mobile Source Offset Program

Any person may implement an old vehicle scrapping program, or other mobile source offset program, in accordance with the provisions of Regulation XVI, to obtain and apply MSERCs as credit towards meeting an emissions reduction equivalency target.

(B) Remote Sensing

Employers may elect to implement a remote sensing program in accordance with the Rule 1501.1 Alternative Emissions Reduction Program Guidelines (adopted on April 14, 1995) or an alternative methodology approved by the Executive Officer. The Executive Officer shall not approve an alternative methodology unless it includes baseline emissions estimates, estimated pollutant reductions after repair, and demonstrates to the satisfaction of the Executive Officer that it will produce emissions reductions at least equivalent to the employer's emissions reductions equivalency target, or such portion of the target for which the employer seeks equivalency. Emissions reductions may be applied as credit towards meeting an emissions reduction equivalency target, and shall be determined in accordance with paragraph (e)(7) of this rule.

(C) Work-Related Trip Reduction

Employers may elect to receive vehicle trip reduction equivalency credits (VTRECs) for participation in a work-related trip reduction program, in accordance with paragraph (e)(5) and (e)(6) of this rule and the Rule 1501.1 Alternative Emissions Reduction Program Guidelines (adopted on April 14, 1995). VTRECs may be converted to emissions reductions by multiplying with the appropriate emission factor provided in subdivision (g) of this rule, and applied as credit towards meeting an emissions reduction equivalency target.

(2) Alternative II - Air Quality Investment Program Option

In lieu of complying with the provisions of Rule 1501, employers may participate in an air quality investment program. Employers that have between 100 and 200 employees inclusive, per worksite, may participate by submitting an annual air quality investment of $110 for each employee that reports during the window for calculating AVR, to be placed in a restricted fund at the SCAQMD and used in a Board approved emissions reduction program. The Executive Officer shall recommend to the SCAQMD Governing Board, for approval, on a quarterly basis, release of monies from the restricted fund for emissions reduction programs that achieve equivalent mobile source emissions reductions, according to the following:

(A) The Executive Officer shall accept proposals on an ongoing basis;

(B) The Executive Officer shall determine the amount of mobile source emissions reductions required to demonstrate equivalent emissions reductions and the amount achievable under each proposal, according to the provisions of paragraph (e)(8) of this rule;

(C) The Executive Officer shall recommend that equal consideration be given to cost-effective proposals and those that achieve long-term advancement of mobile source technology;

(D) Emissions reduction programs to be considered for funding include, but are not limited to, the procurement and operation of low or zero emission vehicles, and the creation and improvement of localized, demand responsive, mobility-enhancing services and projects, such as the purchase or operation of shuttle services, the construction or operation of telecommuting workcenters, or other infrastructure projects serving regional transportation needs, which can be provided by entities such as transportation management associations or organizations, or transit or rail authorities, or other appropriate regional rideshare organizations, and those implementing old vehicle scrapping programs.

(E) The Executive Officer shall recommend the allocation of funding for proposals that reduce equivalent mobile source emissions or trips within each county to be proportional to the contribution level of employers within each county to the greatest extent feasible.

(F) The Executive Officer shall provide to the SCAQMD Governing Board, a status report on program effectiveness and restricted fund balance on a quarterly basis.

(3) Alternative III - Emissions Equivalent AVR Option

Employers may implement alternative emissions reduction strategies to meet the AVR target of Rule 1501. Emissions reductions and MSERCs obtained through implementation of the alternative emissions reduction strategies may be converted to emissions reduction trip equivalency credits (ERTECs) and vehicle trip reduction equivalency credits (VTRECs), in accordance with the provisions of subdivision (e) of this rule, and applied to an emissions equivalent AVR (EE AVR), determined according to paragraph (e)(3) of this rule. Alternative emissions reduction strategies may include any of the strategies allowable under Alternative I, subject to SCAQMD approval. Employers whose EE AVR matches or exceeds the AVR target shall be considered, for the purposes of Rule 1501, to have met the AVR target.

(e) Calculation Methods

The following calculation methods, or other alternative calculation methods which produce equivalent numerical values and are approved by the California Air Resources Board, shall be used:

(1) Emission Reduction Equivalency Target

The emissions reduction equivalency target shall be determined according to the following equation, for ROG, NOX, and CO, based on annual emission factors specified in subdivision (g) of this rule:

Emissions Reduction

Daily Commute AVR Emission

Equivalency Target = x x

Vehicles Shortfall Factor

(lbs/year)

The emissions reduction equivalency target shall be determined for each year in which an employer chooses to implement alternative emissions reduction strategies in lieu of complying with Rule 1501.

(2) AVR Base Determination

The AVR base shall be determined in accordance with the provisions of Rule 1501 subdivision (m), or be assigned a default value of 1.1.

(3) Emissions Equivalent AVR (EE AVR)

The EE AVR shall be determined according to the following equation, for each year in which the employer chooses to use ERTECs or VTRECs:



Employees*

_________________

EE AVR =

TV - ERTEC - VTREC

Where: Employees *= Average Daily Number of Employees Reporting to Work in the Window for Calculating AVR.

TV = Average Daily Total Number of Vehicles Arriving to Work in the Window for Calculating AVR, as Determined According to Rule 1501 Subdivision (n).

(4) Emissions Reduction Trip Equivalency Credits (ERTECs)

Emissions reduction trip equivalency credits shall be determined according to the following:

(A) Mobile Source Emission Reduction Credits

Mobile Source Emission Reduction Credits (MSERCs) obtained through an old vehicle scrapping program, or other mobile source offset program included in Regulation XVI, may be converted and used as ERTECs according to the following conversion equation, based on annual emission factors specified in subdivision (g) of this rule:

MSERCs (lbs/year)

________________

ERTECs =

Emission Factor



(B) Alternative Emissions Reduction Strategies

Emissions reductions from alternative emissions reduction strategies provided in paragraph (d)(1) of this rule may be converted to ERTECs through division by the emission factor provided in subdivision (g) of this rule.

(5) Vehicle Trip Reduction Equivalency Credit (VTRECs)

VTRECs obtained from the reduction of work related trips shall be determined according to the following equation:

Creditable Trip Reductions (CTR)

___________________________

VTREC =

Conversion Factor (CF)

Where: CTR = Trip Reductions That Are Real, Surplus, and Quantifiable.

CF = 2.0 for AM Peak Period Trips; 2.3 for Other Trips.

Creditable trip reductions shall be determined by a methodology approved by the Executive Officer. The Executive Officer shall not approve an alternative methodology unless it includes baseline trip estimates and demonstrates to the satisfaction of the Executive Officer that it will produce trip reductions at least equivalent in emissions to the employer's emissions reductions equivalency target, or such portion of the target for which the employer seeks equivalency. A percentage of baseline trip length may occur outside of the South Coast Air District District; however, VTRECs shall only be determined based on emissions reductions within the District.

(6) Alternative Fuel Vehicle Credit Adjustment

Additional VTRECs may be obtained from the conversion of vehicles to compressed natural gas-, methanol-, propane-, or electric-fuelled vehicles that have been certified and/or approved by the Air Resources Board to have met the transitional low-emission vehicle (TLEV), low-emission vehicle (LEV), ultra-low-emission vehicle (ULEV), or zero-emission vehicle (ZEV) emissions standards, according to the following formula and table:

VTREC = [VT(CNGs)] x [1 - (1/6)]

+ [VT(Ms)] x [1 - (1/5)]

+ [VT(Ps)] x [1 - (1/5)]

+ [VT(ZEVs)] x [1 - (0)]

_______________________________

Conversion Factor (CF)

Where: VT(CNGs) = Number of Vehicle Trips from Compressed Natural Gas Vehicles

VT(Ms) = Number of Vehicle Trips from Flexible Fuel Vehicles Operated

on Methanol

VT(Ps) = Number of Vehicle Trips from Propane Vehicles

VT(ZEVs) = Number of Vehicle Trips from Zero-Emission Vehicles

VT = Vehicle Trips

CF = 2.0 for AM Peak Period Trips; 2.3 for Other Trips.

(7) Emission Reductions From Remote Sensing

Emission reductions obtained from the implementation of remote sensing shall be determined according to the following equation:

Pre-Repair Post-Repair

Emissions Miles

Emission Emission

Reductions = - x Travelled

Rate Rate

(lbs/year) (miles)

(lbs/mile) (lbs/mile)



Where: Pre-Repair = Measured Emission Rate Prior to Repair Work.

Post-Repair = Measured Emission Rate Immediately Following Repair Work

Miles Travelled = Number of Miles Travelled Following Repair Work Until the Next Regularly Scheduled California Inspection and Maintenance Smog Check.

(8) Air Quality Investment Program Equivalent Emissions Reductions

Emissions reductions from air quality investment program proposals are determined to be equivalent provided that:

(A) The emissions reductions are demonstrated to be real, quantifiable, enforceable, and surplus, in accordance with the Rule 1501.1 Alternative Emissions Reduction Program Guidelines (adopted on April 14, 1995); and,

(B) The sum of emissions reductions is equal to, or greater than, the sum of the emissions reduction equivalency targets, determined according to paragraph (e)(1) of this rule, based on the total number of affected employees and their respective AVR targets, as provided for in accordance with subparagraph (f)(1)(B) of this rule and an AVR base value of 1.1, according to the following equation:

Equivalent

Emissions Reductions = ERET1.3 + ERET1.5 + ERET1.75

(lbs/year)



Where: ERET1.3 = Equivalent Reduction Equivalency Target for employees subject to an AVR target of 1.3.

ERET1.5 = ERET for employees subject to an AVR target of 1.5.

ERET1.75 = ERET for employees subject to an AVR target of 1.75.

(f) Program Administration

Rule 1501.1 shall be administered according to the following:

(1) Employers choosing to comply with Rule 1501.1 shall register with the SCAQMD by submitting the employer SCAQMD identification number, if any previous work trip reduction plans were submitted, and the following information on an SCAQMD-approved registration form:

(A) The name, contact person, address, and telephone number of all participating worksites;

(B) The total number of employees that would otherwise be subject to Rule 1501, segregated by AVR target;

(C) A listing of the alternative emission reduction strategies or selection of the Air Quality Investment Program chosen; and,

(D) Employers choosing to participate in any alternative emissions reduction strategies shall submit the following additional information:

(i) Emission reduction calculations for ROG, NOX, and CO, and any trip reduction calculations to demonstrate equivalency; and

(ii) AVR base calculations.

(2) Employers choosing to meet the Rule 1501 AVR target by using an EE AVR shall continue to maintain records in accordance with Rule 1501.

(3) For each year an employer chooses to operate under the provisions of this rule in lieu of compliance with Rule 1501, the employer shall register with the SCAQMD by notifying the SCAQMD of participation status, and include any changes to the information submitted in accordance with paragraph (f)(1) of this rule.

(4) All notifications and updates submitted as part of this rule are subject to the provisions of Regulation III - Fees.

(g) Annual Emission Factors

(1) The following default emission factors (pounds/year per daily commute vehicle) may be used in determining Emissions Reduction Trip Equivalency Targets, ERTECs, and emission reductions from VTRECs.

Emissions

Year ROG NOX CO

________ _____ ____ ___

1995 22 15 175

1996  20 14 161

1997 19 14 146

1998 17 13 132

1999 15 12 117

2000 13 11 103

2001 12 10 96

2002 11 9 89

2003 10 9 82

2004 9 8 75

2005 8 8 68

2006 8 7 64

2007 7 7 61

2008 6 7 58

2009 6 6 54

2010 5 6 51

The emission factors contained in subparagraph (g)(1) are based on ARB's EMFAC 7F emission factor model and BURDEN 7F vehicle activity model. These emission factors shall be revised upon publication by the Air Resources Board of final revised emission factors.

(2) Default emission factors in paragraph (g)(1) may be modified to site specific emission factors reflecting vehicle age and trip length characteristics of the employee vehicle fleet.