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56 As briefly discussed in Chapters 1 and 5, coordination among the participants (or stakeholders) involved in the planning, conducting, and/or application of airport GSE emissions inventories is very common and often necessary to achieve the desired outcomes. This section presents sug- gested approaches and best practices that these stakeholders can undertake to accomplish and improve this process. 6.1 Stakeholders As with most activities involving airport-related air quality, the computing of airport GSE emis- sions inventories can encompass an assortment of stakeholders. These stakeholders and their involvement include (but may not necessarily be limited to) those listed and described in Table 21. As shown, airport authority connections with GSE emissions are an extension of the owner/ operator of the airport, a potential GSE owner/operator, and its responsibility in managing ground-based operations. Airlines, cargo carriers and ground support providers are all prospec- tive owners/operators of airport GSE. The FAA is also involved in airport ground operations as well as general conformity determinations that may include GSE emissions. Environmental agencies on the federal, state, or local levels may also be involved in managing air emissions in designated nonattainment areas, including those associated with airport GSE. And finally, air- ports, environmental agencies, and contractors are all potentially involved in the preparation of the airport GSE emissions inventories. 6.2 Coordination Opportunities As described previously in this guidebook, the airport GSE emissions inventory process typically progresses from initiation to completion over three distinct and sequential stages: (1) planning, (2) preparation, and (3) application. This process can take months and, in some cases, up to a year to complete depending on size of the airport and its GSE fleet, the approach to preparing the inventory (i.e., basic, intermediate, advanced) and the availability of the input data. The descriptions of these stages, or phases, are listed in Table 22 and expanded upon in this section with the principal aim of recommending when stakeholder coordination is the most appropriate and effective. 6.2.1 Planning Phase During the airport GSE emissions inventory planning phase, all of the participants should coordinate and agree upon the purpose and need for the assessment. As discussed in Chapter 3, C H A P T E R 6 Coordination Best Practices
Coordination Best Practices 57 the purpose of the assessment may include air quality planning, compliance and/or funding support. The appropriate authorizations, consents and funding support for conducting the work should also be established during this initial phase. Individually, the GSE owners/operators/providers should prepare sched- ules (i.e., listings or databases) of their GSE fleet disclosing the numbers, types, age, fuel use, etc., for use during the preparation phase. The reporting of certain proprietary information and data such as GSE ownership, age, etc., may need to be identified and reconciled at this time. Finally, the inventory preparer(s) should identify the approach to con- ducting the emissions inventory and develop the data collection protocol. Table 22. Opportunities for stakeholder coordination during the airport GSE emissions inventory development process. Participant Responsibility I. Planning Phase Airport authority - Authorize or consent to GSE emissions inventory work. GSE owners/operators - Prepare schedule of airport GSE by type, model, fuel, age, etc. Inventory preparers - Identify approach and develop data collection protocol. Agencies - environmental - Identify purpose and need of emissions inventory results (if applicable). II. Preparation Phase Airport authority - Accommodate and assist with GSE data collection process. GSE owners/operators - Provide schedule of airport GSE and assist with data collection process. Preparers - Complete data collection process, prepare emissions inventory, and report results. III. Application Phase Airport authority - Utilize results for environmental assessments, air quality management plans, funding applications, etc. GSE owners/operators - Utilize results for GSE fleet management and emission reduction plans. Agencies - Environmental - FAA - Utilize results for SIP preparation. - Utilize results for Conformity Determinations. Table 21. Airport GSE emissions inventory stakeholders. Stakeholder Involvement Airport authority - Airport owner/operator - Owner/operator of airport GSE - Involved in airport ground operations - Preparer of GSE emissions inventories Airlines and cargo carriers - Owners/operators of airport GSE Ground support providers - Owners/operators of airport GSE Inventory preparer - Involved in GSE surveys and conducting emissions inventories Governmental Agencies - FAA - Involved in airport ground operations - Responsible for general conformity determinations in nonattainment areas - Environmental agencies - Involved in managing emissions in designated nonattainment areas - Preparer of GSE emissions inventories for SIPs ReminderâAirport operational levels can change over time due to a range of economic and regulatory factors and therefore obtaining the most up-to-date data is key to producing accurate airport GSE emissions inventories.
58 Improving Ground Support Equipment Operational Data for Airport Emissions Modeling 6.2.2 Preparation Phase During the preparation phase, the data collection process is conducted by assembling the data, information, and supporting materials identified and deemed necessary during the plan- ning phase for preparing the GSE emissions inventory. Depending on the approach, these data may include (but, again, are not necessarily limited to) the GSE schedules, the GSE operating times and fuel types, etc. Some of these data may be col- lected during field surveys or by using the tools and methods contained in this guidebook. Using these input data, the inventory preparers compute the GSE emis- sions inventory, conduct the necessary quality assurance/quality control procedures, and report the results during this phase. At this point, all of the stakeholders should review the work and any over- sights, discrepancies, or errors that arise from this review should be identi- fied and reported to the preparers along with any necessary clarifications, corrections, and/or alternative remedies. 6.2.3 Application Phase During the application phase, the outcomes of the GSE emission inventories are utilized by the individual stakeholdersâeach according to their needs. For example, the airport authority, GSE owners/operators/providers, and/or environmental agencies may use the results to develop or advance emissions management and reduction strategies involving airport GSE. More specifi- cally, the airport and the FAA may also use the results to meet disclosure and reporting require- ments under NEPA and the CAA. In a similarly supporting role, environmental agencies could outreach to airport owners/ operators to review and comment upon the appropriate components of the SIP that pertain to airport GSE emissions to help ensure that they are properly accounted for and documented. NoteâStakeholder coordination opportunities on matters pertaining to computing GSE emissions can be frequent and meaningful through the preparation phase, but then they diminish somewhat in the application phase.
