(Adopted January 9, 1976)(AmendedApril 

### 1, 1977)(AmendedAugust 

### 5, 1977) (Amended April 6,1979)(AmendedAugust 7,198l)(Amended May 14, 1999)

PI PROPOSED AMENDED RULE 218

### - STMXCONTINUOUSEMISSION MONITORTNG

(gg) Definitions (1) ANALYZER- the part of the continuous emission monitoring system (CEMS) that analyzes the appropriate gaseous constituents of the conditioned gaseous sampleormeasures stack gas volumetric flow and fuel flow rates, as applicable. (A) Contaminant Analyzer 

## - the part of the CEMS that detects the air contaminantand represents those concentrationsin a signal output. (B) Diluent Analyzer 

## - the part of the CEMS that detects oxygen, carbon dioxide or other diluent gas concentrations and represents those concentrations in a signal output. (C) Fuel Flowmeter 

### - the part of the CEMS that detects the parameters of all essential measurement sub-systems (ex.. temperature. pressure, differential pressure, frequency, gas density, gas com~osition. heating value) and generates signal outputs which are a function of the fuel flow
rate and all essential measurement sub-system parameters. (D) Stack Flowrneter

## - the part of the CEMS that detects the parameters from all essential measurement sub-systems (ex., temperature. static and atmosphericpressure, gas density, gas composition, molecular weight, gas moisture content) and generates signal outputs which are a function ofthe stack gas volumetric flow rate and all essential measurement sub-system parameters 

### (42) CALIBRATION . . 

## - a procedure performed to ensure 

## fhafthe 

### ---;'-...--CEMS 

### CEMS accurately measures and recordkgs 

### sf air contaminant or diluent gas concentration, flow rate and other parameters necessary to generate data, as evidenced by calibration checks, and achieved by periodic manual or automatic adj ustrnent



### . (23) CALIBRATION CHECK 1 is a procedure performed to determine the CEMS response 

### d%hesy%emto a given gaseous compound concentration, +mass-& kje&kg+ 

### A certified calibration gas mixture is iniected into the CEMS as close to the probe tip as practical. +y.tem~+'.-~ sf 2 ~lv
(4) CERTIFIED CEMS 

### - a CEMS installed, tested. operated, maintained, and calibrated according to the applicable requirements of Rule 218; that has met the

### Rule 218 (Cont.) Amended May 

### 14,1999

applicable performance specifications according to Rule 218(c)(l

### MB), and, has received written approval and conditions thereto applying. from the Executive Officer. (6% 

### CERTIFIED GAS MIXTURE 

### - Is 

### a mixture manufactured, analyzed*



### ,,,1,,,., and certified according to "EPA Traceability Protocol for Assay and Certification of Gaseous Calibration Standards" 

## - EPA-600/R97/121, September 1997 Revision (EPAProtocol)or any subsequent version published by EPA. This definitionincornoratesby reference EPA Protocol.

### Rule 218 (Cont.) 

### Amended May 

### 14,1999



# t1 

## 2 

## ?--Ahcy is 

# s . .



### (13) ?=?mST!MSis:

(15 ) =xx7 cnn 

## . .

(4-66)STLACK ?.4GPIITm- EYETEM, r CONTINUOUS EMISSION MONITORING SYSTEM {CEMS) is 

### - the total combined equipment 

## and systems required &e&e continuouslv determink- -Cair contaminants and diluent gases concentrations andlor mass emission rate iff of a
source effluent {as apwlicable). The system CEMS consists of three major subsystems: sampling interface, analyzer and data acquisition system. 

## tlA4 

# -

fi>Rule

### 218 (Cont.) Amended May 

### 14,1999

(7) CONTINUOUS MOMTORING 

### - monitoring in which a minimum of one measurement (ex., concentration. mass emission, flow rate) is taken and recorded each minute. @) DATA ACQUISITION SYSTEM (DAS) 

### - the part of the CEMS that processes data generated by the analyzer and records the results. thus creating a permanent record of the output signal in terms of concentration, flow rate, and/or any other applicable parameter necessary to generatethe required data in units of applicable standard. The DAS consists of all equipment such as a computer required to convertthe original recorded valuesto any values required for reporting. 

### (79) DILUENT GAS 

## - is a gas present in a calibration gas mixture or in the source emissions

### Awhich ispresent in quantities significantly larger than the air contaminant. (KjJ LABORATORY APPROVAL PROGRAM (LAP) 

### - a program administered by the District that grants test-method-specific approvals to independent testing laboratories or firms that perform tests to determine source compliance with District rules and regulations. MODIFICATION REQUIRING RECERTIFICATION 

### - any change to the basic equipment, control equipment, contaminant concentration, interfering substances,

or CEMS (or SCEMS)that isdeemed by the Executive Officer to have a potential for adversely affecting the ability ofthe CEMS to provide accurate, precise and timelv data representative ofthe stack emissions for which the CEMS (or SCEMS) is required. QUALITY ASSURANCEIQUALITY CONTROL (OAIOC) PLAN 

### - a written document in which the specific procedures for the operation, calibration and maintenance of a certified CEMS are described in detail, including additional quality assurance assessments and the corrective action svstem. The purpose of

. this plan is to ensure that the CEMS generates, collects and reports valid data that is precise, accurate. complete, and of a quality that meets the requirements, performance specifications, and standards ofRules 

### 2 1 8 and 

### 218.1. 

### (14 U)ROUTINE MAINTENANCE 

### - preventive evaluation and repair (ifnecessary) of CEMS p.erformedat specified intervals to preclude system failure, Routine maintenance mav be performed as recommended by theRule 218 (Cont.) Amended May 14,1999

manufacturer or a documented standard operating procedure determined through operating experience and approved by the Executive Officer. Repairs to a malfunctioning system are excluded fromthis definition. (14) SAMPLING INTERFACE 

### - that part of the CEMS that performs sample acquisition using one or more of the following operations: extraction, physical/chemical separation, transportation or conditioning of a representative sample from a designated source. SEMI-CONTINUOUS EMISSION MONITORING 

## - a monitoring technique in which a minimum of one measurement (e.g. concentration, mass emission, flow rate) is taken and recorded every fifteen (15) minutes. (16) SEMI-CONTINUOUS EMISSION MONITORING SYSTEM (SCEMS) 

### - the total combined equipment and systems to semi-continuouslv determine air contaminant and diluent gas concentrations andfor the mass emission rate in a source effluent (as applicable) The system consists of three ma-ior subsystems: sampling interface, analyzer and data acquisition system. This class ofmonitoring includes but is not limited to gas chromatography. integrated sensitized tape analyzer, other sample integrationbased technologies, and time-shared CEMS. 

### (47l7)SYSTEM FAILURE 

### . . 

# --

- inabilitv ofthe CEMS to meet the requirements of (we~ Rule 2 1 8.1, "Continuous Emission Monitoring Performance Specifications"
,or, Code of Federal Regulations, Title 40 

### - "Protection of Environment", Part 60 

### - "Standards of Performance for New Stationary Sources", Appendix F 

### - "Quality Assurance Procedures". (18) TIME-SHARING 

## - a monitoring technique where an analyzer and possibly the associated sample conditioning system isused on more than one source. (19) WORKING DAY 

### - Monday throughFriday excluding,holidays.

. 

### . /1--b, 

# -

w =c 'U''f'L~""- 

### . .



# m:: 2st- 

## ** ' 

### . .Rule 218 (Cont.) Amended May 14,1999



### r20) ZERO CHECK- a procedure performed to determine the response ofthe CEMS to a given zero gas standard by means of injecting the zero gas into the CEMS as closeto the probe tip as practical. (21) ZERO GAS 

### - a gas containing less than a specified amount of the air contaminant

or diluent gas which, when periodically iniected into the CEMS, is used to check CEMS' response to the absence of the air contaminant or diluent gas.

(a

### bJ StaskApplicabili~ and Monitoring Requirements forNew, Modified and Existing CEMS (1) The provisions of this Rule shall apply to all sources that require CEMS as specified in the regulations orpermit conditions, with the following exceptions: (A) This Rule shall not apply to CEMS subiect to Regulation 

### XX 

### - "Regional .Clean Air Incentives Market (RECLAIM)", Regulation IX 

## - "New Source Performance Standards (NSPS)". Regulation X 

## - National Emission Standards for HazardousAir Pollutants CNESHAPS), or Regulation XXXI



### - "Acid Rain Program". 

### (B) This Rule shall not apply to CEMS subiect to permit conditions where the purpose of the CEMS is to monitor the performance of the basic andor control equipment and not to determine compliance with any applicable limit or standard. C This Rule shall not apply to CEMS where alternative performance specifications arerequired by another District rule. (2) The owner or operator of any equipment subiect to this Rule shall provide, properly install, operate, and maintain in calibration* and good



### . . working order 

## 0 a certified CEMS to measure the concentration andor emission rates, as applicable, of the i%dhwagair contaminants and diluent gases, flow rates. and other required



### . , . 

### . parameter^.^ th The owner or operator shall also provide the necessary records and my other data necessary &FRule 

### 218 (Cont.) Amended May 14,1999

calculatM- air contaminant emission rates or concentrations. as specified in Rule 

### 218. Sections 

### (el and 

### (0.



### . . (b 

### G) Appwd cCf Requirements for New and Modified CEMS and SCEMS 

### (1) Application and Approval Requirements forNew and Modified CEMSRule 218 (Cont.) Amended May 14,1999

(A) The owner or operator ofany equipment subiect to this Rule shall submitto the Executive Officer an "Application for CEMS" or "Application for CEMS Modification". as applicable. Any application submitted 

### AU

. . onAr after

### Ap2 6, ! 

### 979 May 14, 1999,

&iJ require an initial approval by the Executive Officer prior to installation of a new CEMS or modification of an existing CEMS. The Executive Officer shall notifv the applicant in writing within 60 calendar days of receipt of an application for a new CEMS. or within 30 calendar days ofreceipt of an application for a modification to an existing CEMS. if the application contains sufficient information to be deemed complete. Where an application has been determined to be incomplete. the Executive Officer shall request specific information needed to complete the application. Upon receipt of any complete resubmittal or the additional &

2n dv information, plans or specifications tz c- after the application has been deemed incomplete, a new 30-day period shall begin during which the Executive Officer shall determine the completeness of the application 

## and-Within 90 days ofinstallation, a person operating or using CEMS shall undertake a series of certification tests. If the equipment served by the CEMS is not operating at the time of complete CEMS installation, then the CEMS shall undergo a series of certification tests within 90 days from the next start-up of the equipment served by the CEMS. The purpose of the certification tests is to



### . . demonstrate the 

## ..-..--'..t..'.". CEMS performance pursuant to (e)-bkw the specifications in accordance with the provisions of Rule 218, Section (c)(l)(B). The owner or operator shall notify the Executive Officer in writing at least 14 days before the scheduled certification test dates. The certification tests shall be performed by a testing laboratory



### . . approved under the District Laboratory Approval Program. wha-6



### . .. . . 

# e. dData from such tests shall be submitted to the Executive Officer &+qqmw& within 45 days following test completion. If satisfactory performance is demonstrated, a final approval of the sy%m CEMS shall be granted. Subsequent overation and maintenance of the certified CEMS shall be in accordance with the provisions of Rule 2 18. Section (cMlMB). After final approval,Rule 218 (Cont.)

. Amended May 14,1999

modifications made to the CEMS shall be reviewed and approved by the Executive Officer according to the specifications stipulated in Rule 218, Section (c)(l)(B), and may require all or a portion of performance tests to be conducted. JB) Upon submission ofan "Application for CEMS" or "Application for CEMS Modification" as prescribed in Rule 218 Section (c)(l)(A), the applicant shall indicate either one ofthe following conditions: 

## II) That the CEMS shall be reviewed and certified according to the provisions of Rule 2 18.1, "Continuous Emission Monitoring Performance Specifications", Section (b). and the subsequent operation and maintenance of the certified CEMS shall be in accordance with the provisions of Rule 218. Sections (b), (e), (f) and (p) and ofthe requirements ofRule 218.1(b) and (d), or,

. . (11) That the CEMS shall be reviewed and certified according to the applicable provisions ofthe Code ofFederal Regulations, Title 40 

### - "Protection of Environment", Part 60 

### - "Standards of Performance for New Stationary Sources" (40CFR60), Appendix B 

## - "Performance Specifications" (Appendix B), and the subsequent operation and maintenance of the certified CEMS shall be in accordance with the provisions of Rule 218, Sections (b), (e), 

### (f) and (a), and the requirements of 40CFR60, Appendix F 

### - "Ouality Assurance Procedures" (Appendix F). Notwithstanding the requirements of Section (c)(l)(B)(ii), any alternative test methods for 40CFR60, Appendices B and F shall be those that are listed in Rule 2 18.1. Table 1

### - Reference Methods. JC) A "Notification of Pre-Approved Modification" and report of results of prescribed quality assurance checks may be submitted in-lieu of the "Application for CEMS Modification" when the modification has been made in accordance with the written technical guidance document approved by the Executive Officer. (2) Application and Approval Requirements for New and Modified SCEMS (A) In-lieu of submitting an application for CEMS per Rule 218, Section Jc)(l), the owner or operator of any equipment subject to this Rule, may elect to submit an application for a SCEMS if the averaging time for the


# - applicable limits(s) for which the CEMS is required is 24 hours or greater;
or. if the owner or operator demonstrates, to the satisfaction of theRule 218 (Cont.) Amended May 14,1999

-v Executive Officer, that no CEMS technology is commercially available for the applicable contaminant and the applicable limits. (B) If the conditions in Rule 218. Section (c)(2)(A), above, do not apply, the

owner or operator of any equipment subiect to this Rule may still elect to submit an application for a SCEMS in lieu of a CEMS. subject to the following:
(1) The owner or operator demonstrates that the concentrations and/or emissionsrequiredto be monitored would be equivalent to that monitored by a CEMS for the applicable averaging period, to the satisfaction ofthe Executive Officer;

*. Jii) The SCEMS shallbe capable to take and record a minimum ofone measurement (concentration.mass emission rate and/or flowrate,

asapplicable) every 15minutes allowing asequally spaced data points aspractical; Jiii) The owner oroperator shall include in the QNQCplan themethod ofcalculating the 15-minuteaverages for compliance determination to the applicable limit or standard; Jiv) If an exeedance ofthe allowable limit or standard is calculated using fewer than 100% valid datapoints. then the District shall use any relevant data forthe operation ofthe equipment (basic and control, asapplicable) to verify the calculated exeedance; (v) If a time shared SCEMSisproposed, it shall meet the performance specifications of Rule 2 1 8.1, Section (e); JC) The requirements for the application submittal and approval of CEMS as provided in Rule 218. Section (c)(l) shall also apply for SCEMS applications. (3) Operation of CEMS or SCEMSDuring Certification Testing CEMS or SCEMS shall be certified as configured for the normal operation of the CEMS or SCEMS with respect to sample acquisition, sample conditioning,, pollutant/diluent detection, data requirements and reporting. (4) Quality Assurance/Quality ControlPlan for New or Modified CEMS or SCEMS (A) The owner or operator of CEMS or SCEMS who elects the performance specifications according to Rule 218, Section (c)(l)(B)(i), shall submit to the Executive Officer for approval a CEMS ONOC Plan within 45 days of CEMS installation and no later than 30 days before the certification tests.Rule 218 (Cont.) Amended May 14,1999

JB) Alternative QualityAssurancePractices The owner or operator of CEMS or SCEMS who elects the performance specifications according to Rule 218. Section (c)(l)(B)(i), may choose to develov alternative CEMS operational test requirements to be included in the CEMS QNQC procedures that assure data of equivalent or better quality. These alternative QNQC procedures shall be submitted with the facility ONOC Plan and are subject to the apvroval of the Executive Officer.



## v-=

< 4. 

### 6. 

### 44%

Jd) Requirements forExisting CEMS and SCEMS (1) Requirements forExisting CEMS 

### (A) A CEMS installed and granted final approval before May 14, 1999shall be maintained and operated accordingto the provisions ofRule 218, Sections (b), (e), (f) and 

### (a),and the requirements of Rule 218.1, Sections (c) and (d). 

### (B) A CEMS application for initial and final approval submitted to the Executive Officerbefore Mav 14, 1999 shall be reviewed and approved by the Executive Officeraccording to the specifications and requirements of Rule 2 18.1, Sections (c) and (d). After final approval. the CEMS shall be operated and maintained according to the provisions of Rule 218, SectionsRule 218 (Cont.) Amended May 14,1999

Jb), (e), (f) and 

### (a).and the requirements ofRule 21 8.1. Sections (c) and 

## 0 JC) Modificationsrequiring recertification to any existing:CEMS shall be reviewed and approved according to the conditions under Rule 218 Section (c)(l)(B)(i) or (ii). 

### as ap~licable. After final approvh. the modified CEMS shall be operated and maintained accordingto the conditionsunder Rule 218, Section (c)(l)(B)(i) or (ii), 

### as ap~licable. JD) (1) All existing CEMS 

### as prescribed in Rule 2 18, Sections (d)(l)(A) and (B) shall comply with the ~rovisions ofRule 2 18.1. Sections Jb) and (d), or 40CFR60 Appendices B and F, 

### as auulicable, and of Rule 2 18, Sections (b)and (c),no later than May 14.2006. Jii) Therequirements of Rule 218. Section (d)(l)(D)(i) shall be waived for a period ofthree years if the owner or operator demonstrates, to the satisfaction of the Executive Officer, that the existing CEMS is providing;data that are of a quality commensurate with the original performance specifications and other indicators ofconsistent data quality. Data quality factors that will be considered include: JI) Relative Accuracy (11) Calibration Error (111) Calibration Drift JIV) Zero Drift Valid datareturn percentage JVI) Availability orup-time percentage JVII) Breakdown frequencyand duration JVIII) Excursions beyond quality control limits in OA ~lan. The owner or operator may applvfor a waiver under this subsection every three years afterMay 14,2006. This sub-section shall not apply to existing CEMS that arerequired to comply with the provisions of Rule 218.1, Sections (b) and (d), or, 40 CFR60, Appendices B and F. asapplicable, and Rule 21

### 8. Sections(b) and Jc), asa result of CEMSmodifications requiring recertification, rule implementation, or, compliance with a permit condition. /E) The owner or operator of existing CEMS shall develop and implement a written Oualitv Assurance1Quality Control (OAIQC) Plan no later than May 14,2000. The written ONQCPlan shall be kept onrecord and available for inspection upon requestby the Executive Officer.RuIe 218 (Cont.) Amended May 14,1999

, - JF) On or before May 14.2005, the owner or operator of any existing CEMS shall submit to the ExecutiveOfficer for approval:

(1) A certification signed by an authorizedrepresentative ofthe facility that the existingCEMS meets the requirements ofRule 218, Section (c). or, Jii) An "Application for CEMS Modification", with the applicable fee(s) as specifiedin Rule 

### 301,or, (iii) An application for waiver accordingto Rule 218. Section Jd)(l

### )(D)(i),with documentation supporting the required demonstration; (2) Requirements for Existing SCEMS (A) A SCEMS installed and granted final approval before May 14. 1999 shall be maintained and operated accordingto the provisions ofRule 2 18, Sections (b), (e), 

### (0and (g), and the requirements ofRule 2 18.1. Sections (c) and (d). B A SCEMSapplication for initial and final approval submitted tothe Executive Officer before May 14,1999 shall be reviewed and approved by the Executive Officer accordingto the specificationsand requirements of Rule 21 8.1. Sections (c) and (d). After final approval, the SCEMS shallbe operated and maintained accordingto the provisions ofRule 218. Sections (b), (e). (f)and (a), and the requirements of Rule 2 18.1. Sections (c) and 

## 0 JC) Modifications requiringrecertification to any existing SCEMS shall be reviewed and approved accordingto the conditions under Rule 218 Section (c)(l)(B)(i) or (ii), as applicable. After final approval, the modified CEMS shallbe operated and maintained according to the conditions under Rule 21 8, Section (c)(l)(B)(i) or (ii), as applicable. JD) The owner or operator of an existing SCEMSoperating on or before May 14, 1999 shall be requiredto comply with the provisions ofRule 2 18.1 Section (e) 

### - "Time Sharing;Requirements" and with the provisions of Rule 2 18.1Sections (b) and (d), or, 40CFR60Appendix B and F, as applicable, when the equipment servedby the time-shared SCEMS is modified such that:
(1, One or more ofthe sources monitored requires a new monitoring range,

### 'lo

~UUO~!UOLU 

### snonuguo3aqnbal 01 

### paypour s! ,!mad auyleladoayL (!I)Rule 218 (Cont.) Amended 

### May 14,1999Rule 218 (Cont.) Amended May 14,1999



### (Be) Retention ofRecords for New, Modified and Existing CEMS and SCEMS (1) The records of the data obtained from the CEMS recording devices 

### ekke &a&



### . . shall clearly indicate concentrations or emission rates, or both,

as specified by the Executive Officer. Records shall be maintained by the CEMS

. 

### . owner or operator 

## nC for a minimum period of &east two years, unless otherwise specifically provided bv another District regulation or permit conditions, and, shall be made available to the Executive Officer upon request. (2) All calculations, raw parameter data used for calculations, records of the

occurrence and duration of any start up, shutdown or malfunction, performanceRule 218 (Cont.) Amended May 14,1999



### . . test, evaluation, calibration, adjustment and maintenanceofthe CEMS as well 

### as calibration gas traceability 

### e+qxm cz!! 

### sgu~ shall be retained by the CEMS operator for a minimum period of a&ba& two years unless otherwise specifically provided by another District regulation orpermit conditions, and shallbe made available to the Executive Officer upon request.

(e

### fJ Reporting Requirements forNew, Modified and Existing CEMS and SCEMS Unless otherwise specifically provided by another District regulation or permit conditions, the following reporting requirements shall auply to new, modified and existing CEMS and SCEMS:



### . . (1) A CEMS owner or operator 

# " shall provide a summary of the concentration and/remission data, as auwlicable, obtained from the CEMS, 

### as well as any additional information specified by the Executive Officer, to evaluate the accuracy and precision of the measurements. The summary shall be submitted mei44y once every six months to the Executive Officer, except when more frequent reporting is specifically required by another District rule, or the Executive Officer, on a case-by-case basis. determines that more frequent reporting isnecessary to accurately assess the compliance status ofthe source. The summary report shall be submitted within 30 days &followinn - the end ofthe &month period being reported, in the form and manner prescribed by the Executive Officer. The summary shall be maintained on-site in a retrievable and readable form and shall be made available to the Executive Officer upon request. The submitted summary& shall be available for public inspection at the 

# ~ District.



### . . (2) The CEMS owner or operator 

## p. shall report any concentration level andor emission rate, as applicable, in excess of the regulated limit 

# ,- within 9Q 

### 24 hours or the next working 

### &after such occurrence in the form and manner prescribedby kifft the Executive Officer. The report shall include the following information: 

### (A) Time intervals, date, and magnitude of the excess concentration level, nature and cause of the excess concentration (if known), corrective action(& taken, ifRB preventive measure(& adopted, specific location of CEMS. the equipment or CEMS involved and the facility contact person.Rule 218 (Cont.) Amended May 14,1999

(B) Agveraging period used for data reporting shall correspond to the averaging period specified in the rule or permit condition governing the concentrationand/or emission rate, if applicable.

. 

### . (3) Reports of CEMS Failure or Shutdown (A) The CEMS owner or operator a shall notify the Executive Officer within 94

### 24hours or the next working 

### &, 

## ;- in the event of a system failure or shutdown

### -, which exceeds 24 hours. Zero and calibration checks and routine maintenancedo not require reporting. (B) In the case of a CEMS failure or shutdown 

### -, compliance with the provisions of Rule 218, Section (b) is waived for a period not to exceed 96 consecutive hours. Such waiver is extended beyond 96 consecutive hours only if a petition for an interim variance is filed in accordance with Regulation V and shall terminate at the time the Hearing Board acts upon such variance petition. CEMS owners or operators ofqualified facilitiesmay obtain aHearing Board approval of an alternative operating condition following the established procedure in District Rule 

### 518.2

### - Federal Alternative Operating Condition.

. 

### . (Fa Regularly scheduled CEMS maintenance- shall be deferred until the report required under Rule 218, ssection (e 

### f)o is made, ifthe system is measuring a concentration equal to or exceeding the emission standard,and if such deferral is not reasonably expectedto result in damagetothe system. (H~Continuous emission monitoring requirements shall not apply during @ Regular calibration checks of the system,* or Routine maintenance and repair 

### e#lasting 60 minutes or less*. 

### 0 

# -

Cg) Posting of WrittenApproval forNew, Modified and Existing CEMS and SCEMS The CEMS owner or operator of an approved CEMS mei&wkg sptem shall affix &a written notice of approval or a legible facsimile thereof, upon

### Rule218 (Cont.) 

### Amended May 

### 14,1999



### the equipment or within 26 feet ofthe equi~ment as prescribed in District Rule 206, in a


### manner such that it is clearly visible, &

### legible, and safelv accessible. In the event that the equipment is se 

### constructed or operated that the notice of approval or its legible facsimile cannot be so placed, such notice or legible facsimile shall be mounted on a location approvedby the Executive Officer.