(Adopted September 8, 1995)(Amended July 10, 1998)

RULE 1620. CREDITS FOR CLEAN OFF-ROAD MOBILE EQUIPMENT
(a) Purpose The purpose ofthis rule is to provide opportunities to generate NOx, VOC, CO, PM, and SOx mobile source emission reduction credits (MSERCs) that can be used as an alternative means ofcompliancewith Districtregulations. These credits would be generated based on voluntary emission reductions created by the operation of low- or zero-emission off-road equipment within the jurisdiction of the Districtthat result in emission reductions beyond those required by local, state, and federal regulations.

(b) Applicability Thisvoluntary rule becomes effective January 1, 1996 and applies to any off-road mobile equipment or vehicle for which emission standards have been adopted by the ARB or U.S. EPA and for which optional emission standards have been specified in the ARBts Mobile Source Credit Guidelines. The equipment and vehicles subjectto this rule are used primarily offthe highways to propel, move, or draw persons or property in construction, commercial, industrial, mining, agricultural, or forestry applications within the boundaries of the District and include equipment such as dozers, loaders, tractors, scrapers, graders, off-highway trucks, forkli±Is, and utility servicevehicles. This nile does not applyto utility and lawn and garden equipment, off-road motorcycles, all-terrain vehicles, go-karts, golf carts, marine vessels, aircraft and locomotives. References to the ARB’s Mobile Source Credit Guidelines correspond to the version of the applicable guidelineswhich are in effect atthe time ofinitial applicationforMSERCs.

(c) Definitions Forpurposes ofthis rule, the following definitions shall apply: (1) BASELINE EMISSION STANDARDS means the ceiling emission standards for off-road mobile equipment engines pursuant to the ARB’s Mobile Source Credit Guidelines, or the actual emission level of the existing off-road mobile equipment pursuant to paragraph (d)(6). For spark-ignition Otto-cycle internal combustion engines, hydrocarbon (HC),

1620-1Rule 1620 (Cont.) (Amended July 10, 1998)

carbon monoxide (CO), and NOx emissions shall not exceed the most stringent District, ARB, or U.S. EPA baseline emission standard requirements applicable for the type of engine and the year in which the engine is being used to generate credits. For these engines, the baseline emission standards for VOC and NOx shall be based on the combined VOC+NOx emission standard prorated by certification emission values of each pollutant provided byARB. (2) CERTIFIED ENGINE means an ARB-certifled engine or an off-road engine which has been upgraded to the configuration ofan ARB-certified on-road engine in accordance with the ARB~s Mobile Source Credit Guidelines. 

### (3) CERTIFIED 

### CONVERSION KIT means any alternative. ffiel or add-on hardware conversion (retrofit) kitwhich has been certified byARB to meet the optional emission standards in accordance with the ARB’s Mobile Source Credit Guidelines. (4) EQUIPMENT means any Self-propelled off-road mobile equipment or vehicle which is targeted for repowering, retrofitting, or permanent replacement. (5) EQUIPMENT OPERATOR means any entity who leases for at least one year or owns off-road mobile equipment, and controls the operation ofoff road mobile equipment within the boundaries of the South Coast Air QualityManagement District. (6). LOAD FACTORmeansthe ratio ofthe engine poweroutput during typical operating conditionstothe engine rated horsepower. (7) LOW-EMISSION EQUIPMENT means equipment uflhi~ing ARB-certifled engines orconversion kits, orwhich has been retrofitted to meet one ofthe optional emission standards. (8) MAJOR ENGINE OVERHAUL means a complete rebuilding of a lowemission equipment engine such that the engine is returned to a condition that is equivalent in operation, durability, and emissions performanceto the originally certified engine orconversion kit, by cleaning, adjustment, repair, and majorcomponentreplacement ofthe enginewhich are considered to be beyond routine maintenance procedures. (9) MOBILE SOURCE EMISSION REDUCTION CREDIT (MSERC) means real, quantified emission reductions in accordance with the ARE’s Mobile Source Credit Guidelines, approved by the Executive Officer or designee,

1620-2Rule 1620 (Cont.) (Amended July 10, 1998)

that can be used to comply with District Regulations pursuant to subdivision (g), and are surplus to emission reductions required by U.S. EPA, ARB orDistrictregulations. (10) NITROGEN OXIDES (NOx) means the sum ofnitric oxides and nitrogen dioxides emitted, calculated as nitrogen dioxide. (11) NON-POLLUTING ALTERNATWES means methods or processes which are used to replace existing off-road equipment and do not directly generate anyairpollution. (12) OPTIONAL EMISSION STANDARDS means the applicable equipment engine emission standards, as specified bythe ARB’s Mobile Source Credit Guidelines, which are more stringent than the baseline emission standard. Zero-emission equipment and non-polluting alternatives shall be assigned
an optional emission standard ofzero.grams perbrake horsepower-hour. (13) PERMANENT REPLACEMENT means to permanently remove existing off-road equipment which has been in continuous active operation from service, such that the equipment will not be operated within the District, and to replace it with non-polluting alternatives. Equipment which is scrapped, or permanently relocated or sold outside the District, and is demonstrated not to be brought back or sold back into the District, will be consideredto be permanentlyremoved. (14) REPOWERmeans to replace the existing off-road equipment enginewith a certified engineto meet one ofthe optional emission standards. (15) RETROFIT means to modifythe existing off-road equipment enginewith a certified conversion kit to meet one of the optional emission standards. Retrofit may also mean to modifythe existing off-road equipmentwith onroad emission control technologies, tested in accordance with the ARB’s test procedures for off-road equipment engines specified in Title 13, California Code of Regulations, to meet one of the optional emission standards, subject to the approval ofthe Executive Officer or designee in consultationwiththeARB. (16) USEFUL LIFE meansthe life (in hours) thatthe equipment retrofitted with alternative fuel conversion kits is expected to meet one of the optional emission standards and is equivalentto the durability period ofthe certified conversion kit. (17) VOLATILE ORGANIC COMPOUND (VOC) is anyvolatile compound of carbon; excluding methane, carbon monoxide, carbon dioxide, carbonic

1620-3Rule 1620 (Cont.) (Amended July 10, 1998)

acid, metaffic carbides or carbonates; ammoniurn carbonate, and exempt compounds as defined in District Rule 102. (18) ZERO-EMISSION EQUIPMENT means any equipment which produces
zero emissions of any criteria pollutants utider any and all possible operational modes and conditions.

(d) EquipmentOperatorRequirements In orderto generate MSERCs, an equipmentoperatorshall: (1) implement one or more ofthe following projects: purchase new low- or zero-emission equipment; or repower, retrofit, or permanently replace existing equipment to meet one of the optional emission standards. Equipment using alternative-fuel or add-on hardware retrofit kits shall become eligible for ciedit generation once ARB has approved applicable certification procedures and the retrofit kit is ARB-certified to meet an optional emission standard. (2) forprojects involving permanent replacement, (A) submit an Off-Road MSERC Application, as specified ‘in subdivision (e), within 90 days ofthe completion ofany permanent replacement which occurs after rule effective date. For projects involving permanent replacement completed prior to rule effective date, the equipment operator shall submit an Off-Road MSERC Application, as specified in subdivision (e), within one year ofthe rule effective date. (B) annually renew the MSERCs by notifying the Executive Officer or designee in writing ofthe continued operation ofthe non-polluting alternative one year following the approval of the Off-Road MSERC Application and everyyearthereafter. (3) forprojects not involving permanent replacement, (A) submit an Off-Road MSERC Application, as specified in subdivision (e), within 90 days subsequentto the initial service date of the low- or zero-emission equipment, for projects involving purchasing, repowering, orretrofitting afterrule effective date. (B) submit an Off-Road MSERC Application, as specified in subdivision (e), within one year subsequent to rule effective date, forprojects involving purchasing priorto rule effective date.

1620-4Rule 1620 (Cont.) (Amended July 10, 1998)

(C) following approval of the Off-Road MSERC Application, demonstrate the operation ofthe low- or zero-emission equipment to the satisfaction of the Executive Officer or designee by submittingthe 

### actual operatinghours forthe six-month period from the initial service date, and the projected operating hours for the subsequent six-month period. (D) annually renew the MSERCs by submitting the actual operating hours for each preceding twelve-month period and the projected operating.hoursforeach subsequent six-month period. (B) verify that the operation •of new, repowered, or retrofitted equipment shall notincrease emissions ofotherpollutants, including 

### VOC, CO, PM, and smoke beyond the standards specified in Title 13, California Code ofRegulations. (4) notifythe Executive Officerordesignee inwritingwithin 90 days following retirement of the low- or zero-emission equipment or the non-polluting alternative or removal of the equipment from service for an engine replacement or a major engine overhaul. The equipment operator shall
ensure that engine replacements and major engine overhauls are performed in accordance with specifications and procedures required by the engine and/or conversion kit manufacturer(s). The equipment operator shall also be responsible for maintaining the engines or conversion kits, meeting optional emission standards, within manufacturer(s)’ specifications throughoutthe credit life. (5) use only manufacturer approved facilities for the installation of certified conversion kits (“Manufacturer” refers to the certified conversion kit manufacturer). (6) in lieu ofusing baseline emission standards specified in the ARB’s Mobile Source Credit Guidelines, submit emissions test data in accordance with ARB’s applicable test procedures and protocols to demonstrate the actual emission level of the existing equipment, subject to the approval of the Executive Officer or designee in consultation with the ARB. The maximum baseline emission levels allowable for credit when using actual emissions level testing procedures for piston-type diesel internal combustion engines are asfollows.



### 1620-5Rule 1620 (Cont.) (Amended July 10, 1998)

(A) Engines greaterthan 50 horsepower (hp) but less than 117 hp shall not exceed NOx emissions of 10.5 grams per brake-horsepowerhour (g/bhp-hr). (B) Engines greater than or equal to 117 hp but less than 400 hp shall not exceed NOxemissions of10.0 g/bhp-hr. (C) Engines greater than or equal to 400 hp shall not exceed NOx emissions of7.0 g/bhp-hr.

(e) Off-Road MSERC Application (1) In order to obtain MSERCs, an equipment operator shall submit an OffRoad MSERC Application. The purpose oftheApplication is to document the purchase, retrofit, repowering orpermanent replacement project aswell
as the operation of the low- or zero-emission equipment or the nonpolluting alternative following the initial service date. The Off-Road MSERC Application shall contain specific information including, but not limited to: (A) a description of the repowering, retrofitting, purchasing or permanent replacement project, including at minimum the equipment type, equipment and engine manufacturer, equipment and engine model, engine model year, equipment identification number, or any non-polluting alternative methods or processes whichwill be used; (B) proofofpurchase or lease ofthe low- or zero-emission equipment
or non-polluting alternative, and proof of purchase for certified engines and conversionkits; (C) the initial service date ofeach low- or zero-emission equipment or the non-polluting alternative; (D) for projects involving permanent replacement, historical records of annual operating hours and fuel consumption for the existing equipment which is permanently replaced, and proofofpermanent replacementto the satisfaction ofthe Executive Officeror designee; (B) load factor for each low-emission equipment supported by actual fuel consumption data; (F) emission test results for existing off-road mobile equipment from equipment operators seekingto establish baseline emission standard based on actual emission levels;

1620-6Rule 1620 (Cont.) (Amended July 10, 1998)

(G) written statement from the equipment operator to verify that the Repowering, retrofitting, or upgrading of existing off-road equipment engine was conducted in accordance with engine or conversion 

### kitmanufacturerts specifications and procedures; (H) identification ofthe legal owner ofthe MSERCs to be issued bythe Executive Officerordesignee; and (I) intended use ofMSERCs pursuantto subdivision (h), ifknown. (2) For projects involving retrofit kits not certified to an optional emission standard, the Off-Road MSERC application maybe processed concurrently with pending ARB action to approve the retrofit kit and shall become eligible forcredit generationpursuantto paragraph (d)(l). (3) The Executive Officer or designee shall approve or disapprove the OffRoad MSERCApplication inwriting. (4) Forthe purposes ofassessing fees, the Off-Road MSERC Application shall be deemed a plan, and the fees shall be assessed in accordance with the provisions ofRule 309.
(f) Issuance ofMSERCs (1) Forprojects notinvolving permanentreplacement, MSERCs shall be issued after approval of the Off-Road MSERC Application by the Executive Officer or designee and upon submittal and verification by the Executive Officer or designee ofthe actual and projected operating hours for each low- or zero-emission equipment as specified in paragraph (d)(3) and in accordance with the MSERC calculation methodology specified in subdivision (g). For projects involving purchasing prior to rule effective date, MSERCs shall be issued based only on the operation ofthe low- or zero-emission equipment which occurs following the submittal ofthe OffRoad MSERC Application. (2) For projects involving permanent replacement, MSERCs shall .be issued upon approval of the Off-Road MSERC Application by the Executive Officer or designee and submittal and verifcation bythe Executive Officer
or designee ofthe annualwritten notifications ofthe continued operation of the non-polluting alternative as specified in paragraph (d)(2) and in accordance with the MSERC calculation methodology specified in subdivision (g). Forprojects involving permanentreplacement priorto rule effective date, MSERCs shall be issued based only on the operation ofthe

1620-7Rule 1620 (Cont.) (Amended July 10, 1998)

non-polluting alternative which occurs following the submittal ofthe OffRoad MSERC Application. (3) For all projects, MSERCs shall be issued by the Executive Officer or designee: (A) for NOx, VOC, CO, and PM, in accordance with paragraph (g)(l), ifmandatory emission standards have been adopted by the ARB or U.S. EPA, and optional emission standards have been specified in the ARB’s Mobile Source Credit Guidelines, or ifcompliance with applicable optional emission standards can be demonstrated, according to ARB1s certification test methods, as approved by the Executive Officerordesignee.in consultationwiththeARB; and (B) for SOx, in accordance with the MSERC calculation methodology specified in paragraph (g)(2). (4) For all projects, MSERCs shall be issued by the Executive Officer or designee based on continued demonstration ofthe actual operation ofeach low- or zero-emission equipment or non-polluting alternative. This demonstration shall startwhenthe equipment ornon-polluting alternative is first placed into service, but shall end whenthe euipment or non-polluting alternative is retired or removed from service for an engine replacement. However, for projects involving purchasing or permanent replacement prior to rule effective date, MSERC generation shall start when the OffRoad MSERC Application is submitted. In addition, MSERC generation shall start for equipment using retrofit kits when MSERC eligibility requirements pursuant to paragraph (d)(l) are satisfied, and MSERC generation shall end whenthe useffil life ofthe kit expires.

(g) MSERC Calculation (1) Thetotal amount ofNOx, VOC, CO, and PM MSERCs generatedwhen an equipment is permanently replaced, repowered, retrofitted, orwhen a new low- or zero-emission equipment is purchased shall be calculated by the Executive Officer or designee for each year according to the following formula:

MSERC

= IXSbase

- Sopt) X (RRS XHP X LF)j/(454 X DF)

where:

1620-8Rule 1620 (Cont.) (Amended July 10,. 1998)

MSERC

= Mobile source emission reduction credits perunit (pounds

peryear) Sbase

= Baseline emission standards (grani~Ibhp-hr)

~ = Optional emissionstandards (grams/bhp-hr) for

repowered, retrofitted, ornew equipment engine 

### HRS

= 

### Annual hours ofoperation, as specified in paragraph (g)(2) HP

= Rated horsepower(hp) LF

= Load factor DF

= Discountfactor, forthe purpose ofgenerating credits,



### equalto 1.0.

Equipment operators should contact the District or ARB to confirm the applicable baseline 

### and optional emission standards before 

### submitting the Off-Road MSERCApplication. (2) MSERCs issued for SOx emission reductions shall be calculated by 

### the Executive Officer ordesignee accordingto thefollowingformula:

MSERC

= 2 X ((Fbase X Sbase)

- (FoptX S0pt))/DF

where MSERC Mobile source emission reduction credits (pounds per

year)

Fbase

= amount offuel usedto powerequipmenttargeted for

repowering, retrofitting, orpermanent replacement (gallons orstandard cubicfeetperyear) Sbase

= sulfur concentration infuel usedto power equipment

targeted forrepowering, retrofitting, orpermanent replacement (pounds pergallon orpounds per standard cubicfoot) Fopt

= amount offuel usedto powerlow-emission equipment

(gallons orstandard cubicfeetperyear) S0~~

= 

### sulfurconcentrationinfuel used to powerlow-emission

equipment (pounds pergallon orpounds per

### standard cubicfoot) DF

= Discountfactor, forthe purpose ofgenerating credits,

1620-9Rule 1620 (Cont.) (Amended July 10, 1998)

equaltol.O. Sbase and S0~~ shall be obtained from the Executive Officer or designee and shall be representative of average sulfur concentrations for applicable fuels used within the boundaries ofthe District. Fbase and F0~t shall be submitted bythe equipmentoperator atthe sametimethat annual operating hours are submitted to the Executive Officer or designee pursuant to paragraphs (d)(2) or (d)(3).

(3) Forprojects not involving permanentreplacement, (A) the MSERCs for the first year after initial service date shall be calculated bythe Executive Officer or designee based on the actual operating hours for the six-month period following the initial service date and the projected operating hours for the subsequent six-month period. For projects involving purchasing prior to rule effective date, the initial service date shall be the submittal date of the Off-Road MSERC Application. (B) for all subsequent years, the MSERCs shall be based on the actual operating hours for each preceding twelve-month period and the projected operating hours for each subsequent six-month period. The projected operating hours shall not be 50% greater than the actual operating hours forthe previous six-month period unless the equipment operator can demonstrate to the satisfaction of the Executive Officer or designee that the projected operating hours shall occur. (C) the MSERCs shall be adjusted every year to reflect any difference betweenthe.projected operating hours reported inthe previousyear and the actual operating hours forthe sameperiod. (4) Forprojects involving permanent replacement, MSERCs shall be calculated by the Executive Officer or designee based on historical records of operating hours ofthe replaced equipment. For the first year, MSERCs shall be issued upon approval ofthe Off-Road MSERC Application. For all subsequent years, MSERCs shall be issued upon submittal ofwritten notification ofthe continued operation ofthe non-polluting alternative. For projects involving permanent replacement prior to rule effective date, the initial service date shall be the submittal date of the Off-Road MSERC Application.

1620-10Rule 1620 (Cont.) (Amended July 10, 1998)

(5) MSERCs shall expiretwo years afterthe date ofissuance.

(h) Use ofMSERCs (1) MSERCs maybe used forany ofthefollowing applications: (A) As RECLAIM Trading Credits. The Executive Officer or designee shall convert MSERCs to RTCs upon submission of MSERCs by the user. (B) As an alternative method ofcompliancewith District Regulation Xl rulesthat haveffiture compliance dates. MSERCs shall not be used to• offset emission increases caused by the removal of emission control equipment or replacement ofcompliant with noncompliant materials subjectto Regulation XI. MSERCs must be in existence and designated as an alternative method ofcompliance in advance ofthe compliance date. (C) As an alternative method of compliance with District Regulation XXII rulesthat allowthe use ofMSERCs. (1)) As New Source Review (NSR) offsets for emission increases at
new or modified facilities that are subject to Rule 1303 (b)(2) in. accordance with the provisions ofRegulation XIII. Pursuant to Rule 504, no variance or series ofvariances, including emergency and interimvariances, shall be granted for a period in excess of90 days from the initial granting ofavariance, from a permit condition implementing a Regulation XIII offset requirement if such permit condition isbased upontheuse ofMSERCs. (B) Forvoluntary retirement ofMSERCs forairqualitybenefits. (F) As an alternative method of compliance with any District regulationswhich specificallyauthorizetheuse ofMSERCs. (2) For the purpose of using MSERCs pursuant to subparagraphs (h)(1)(A) and (h)(l)(B), a discount factor equal to 1.2 shall be applied except that a discount factor of 1.0 shall be applied for operation of zero-emission equipment. For otheruses pursuant to paragraph (h)(1), a discount factor equal to 1.0 shall be applied unless specified otherwise in District regulations. (3) MSERCs shall only be consumed in the air basin where the equipment operatoris based.

1620-11Rule 1620 (Cont.) (Amended July 10, 1998)

(4) In orderto use MSERCs forthe applications listed in subparagraph (l)(B) ofthis subdivision, the usershall submit a compliance planto the Executive Officer or designee. The purpose ofthe compliance plan is to demonstrate compliancewith rule requirements, and specifythe use ofMSERCs. (5) The compliance plan shall containthe following information: (A) Total MSERCs (attach certificates); (B) Identification ofthe specific rule forwhich the alternative method ofcompliance is sought; (C) The period oftimeforthe alternative method ofcompliance; (D) Number ofMSERCs used to substantiate the alternative method of compliance; 

## (B) A quantification ofemissionsthatwould resultfrom noncompliance with the rule identified in subparagraph (h)(5)(B), and documentation supporting the emissions quantification. (6) Supporting documentation (applicable for MSERC usage for Regulation XI rules) shall include, butis notlimited to: (A) a listing of equipment or materials that are the source of noncompliant 

### VOC, NOx, 

### CO, PM, or SOx emissions associated withthe rule identified in subparagraph 

### (h)(5)(B). (B) a description and operating conditions of equipment listed in subparagraph (h)(6)(A) or composition and rate ofuse ofmaterials listed in subparagraph (h)(6)(A). (C) emission rates associated with the use of equipment or materials listed in subparagraph (h)(6)(A). (D) a listing ofequipment or materials that would result in compliance withthe rule identified in subparagraph (h)(5)(B). (F) a description and operating conditions of equipment listed in subparagraph (h)(6)(D) or composition and rate ofuse ofmaterials listed in subparagraph (h)(6)(D). (F) emission rates associated with the use of equipment or materials listed in subparagraph (h)(6)(D). (7) The compliance plan shall be written on a form to be specified by the Executive Officer ordesignee. (8) The Executive Officer or designee shall approve or disapprove the compliance plan. The plan shall be disapproved unless it demonstratesthat



### 1620-12Rule 1620 (Cont.) (Amended July 10, 1998)

an equivalent amount of emissions 

### reductions are obtained through the alternative method ofcompliance. (9) MSERCs may not be used as an alternative method of compliance with Regulation Xl rules until the Executive Officer or designee has approved the compliance plan. (10) The user must renew the compliance plan prior to the expiration of MSERCs uponwhichthe plan isbased.

(i) Recordkeeping Requirements (1) Equipment operators shall be responsible for storing and maintaining data records for each low- or zero-emission equipment which generates MSERCs. The data records shall contain operating data (monthly hourmeter logs obtained from non-resettable hour-meters), fuel consumption data (monthly fuel usage logs), maintenance and repair records, and any othernecessary data. (2) Equipment operators shall maintain a copy of data records described in paragraph (i)(1) for the two most recent years of operation for each loworzero-emission equipmentwhich generates MSERCs.

(j) ComplianceAuditing and Enforcement (1) The Executive Officer ordesignee shall be afforded access inthe Districtto audit any files or records created to comply with recordkeeping requirements, specified in subdivision (i), orrequire equipment operators to submit such records tothe Executive Officerordesignee upon request. (2) The Executive Officer or designee shall be afforded access upon request to inspectthe low- orzero-emission equipment, ornon-polluting alternative at equipment operators’ facilities. The Executive Officer or designee may require emissions testing at a designated emission test facility, at the District’s expense, to determine compliance with Rule 1620 requirements forthe generation ofMSERCs. (3) Violation ofany provision ofthis rule, including falsification ofinformation in the Off-Road MSERC Application or annual operating data shall be grounds for the Executive Officer to disallow or void any MSERCs resulting from or associated with the violation, by disapproving or seeking revocation ofthe Off-Road MSERC Application, and shall be subject to

1620-13Rule 1620 (Cont.) (Amendedjuly 10, 1998)

the penalties specified in the Health and Safety Code for violation of Districtrules.

(k) Requirementsfor PublicNotice Following a completeness determination ofthe Off-Road MSERC.Application for the use ofMSERCs as NSR offsets only, as provided in subparagraph (h)(l)(D), the Executive Officer ordesignee shall: (1) perform the evaluations required .to determine compliance with this regulation and make a preliminary written decision, as appropriate, as to whether or not MSERCs, to be used as emission reduction credits (ERCs), should be approved or disapproved. The decision shall be supported by a succinctwritten analysis; and (2) publish a notice by prominent advertisement in at least one newspaper of general circulation in the District stating the preliminary decision of the Executive Officer or designee and where the public may inspect the information. The notice shall provide 30 days fromthe date ofpublication forthe publicto submitwritten comments onthe preliminary decision, and (3) at the time notice ofthe preliminary decision is published, make available forpublic inspection at the District office the information submitted bythe applicant, the supporting analysis for the preliminary decision, and the preliminary decision to grant or deny MSERCs and the reasons therefore. The conñdentiality oftrade secrets shall be considered in accordance with Section 6254.7 ofthe Government Code. (1) Appeal ofDisapproval ofMSERC Issuance An applicant may, within 30 days of receipt ofnotice ofdisapproval, request the hearing boardto hold ahearing onwhetherthe Off-Road MSERC Applicationwas properlyrefused.

1620-14