Summary of Revisions to Reliability Functional Model Functional Model Advisory Group

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1 Functional Model Advisory Group Background Information Background regarding the Reliability Functional Model and Reliability Functional Model Technical Document The Reliability Functional Model (FM) is a guideline that identifies the functions that must be performed to ensure that the Bulk Power System (BPS) is planned and operated in a reliable manner. The FM describes, in general terms, the functions that must be performed to ensure reliability, the specific tasks that are necessary to perform each function, and the relationships between functional entities that perform the various tasks. In its capacity of a guideline, the FM serves to provide a framework for NERC Reliability Standards as they are developed through the standard development process. The FM is independent of any particular organizational or market structure. The focus of the FM is solely on identification of reliability-related functions and the associated tasks and relationships. The FM is not a standard and does not have compliance effects. If there is a conflict between the FM and Reliability Standards, the Reliability Standards always take precedence. Also, the FM is not intended to identify the entities responsible for NERC registration. The NERC registration process is undertaken by NERC (and the Regional Entities) pursuant to authority from FERC, ultimately derived from the Federal Power Act. The FM has no authority, ability, or intent to impact or influence the NERC Registration process. The Reliability Functional Model Technical Document (FMTD) is a companion document to the FM. It serves to elaborate on the manner in which the various functional entities carry out their functions and perform their tasks. Background regarding the Functional Model Advisory Group The purpose of the Functional Model Advisory Group (FMAG), as outlined in the FMAG Scope document, is to (1) maintain the FM and FMTD to ensure the model correctly reflects the industry today, and (2) evaluate and incorporate new and emergent reliability-related tasks. The FMAG reports to the Standards Committee (SC), and works with the Planning Committee (PC), Operating Committee (OC), and Critical Infrastructure Protection Committee (CIPC) to obtain consensus regarding any proposed changes to the FM and FMTD. All proposed changes to the FM must be posted for industry comment, obtain consensus agreement from the PC, OC, and CIPC, and, ultimately, approval by the SC.

2 Overview of the 2016 FMAG project In December 2015, the FMAG began a comprehensive review and assessment of the FM and FMTD to determine if it correctly reflects the industry today and whether there was a need to incorporate any new or emerging reliability-related tasks. As a result of the review, the FMAG identified many areas in need of revision. Below is a general summary of the type and nature of the revisions proposed by the FMAG. General Overview of Proposed Revisions 1. Incorporated defined terms from the NERC Glossary of Terms: A large majority of the proposed revisions relate to incorporation of definitions from the NERC Glossary of Terms. For each proposed revision, the FMAG undertook a review to determine whether it was appropriate to incorporate the defined term, given the context and usage of the term in the FM. In some instances, the Glossary term was not used because the FMAG did not believe it had the intended meaning of the defined term, as used in the FM. In some instances, the term was simply capitalized to indicate it had the meaning of the Glossary term. In other instances, the word or phrase was replaced with a defined term (i.e., reliability-related services replaced with Interconnected Operations Service). 2. Consolidated ERO-related functions: In the current version of the FM (version 5), there are separate functions for Standards Developer, Compliance Enforcement Authority and Reliability Assurance. The FMAG believes that all of these fall under one function of ensuring the reliability of the BPS. Therefore, all functions related to reliability assurance were moved to the Reliability Assurance function. The Reliability Assurance function is intended to include any tasks performed by the Electric Reliability Organization (ERO) to ensure the reliability of the BPS, including, for example, development of Reliability Standards, development and implementation of a compliance and enforcement program, and development and maintenance of a program for identifying and registering entities responsible for compliance. 3. Clarified the planning functions: Planning Coordinator (PC), Transmission Planner (TP), and Resource Planner (RP): The proposed revisions seek to identify the differences in the various planning functions, the tasks performed by the functional entities, and how the planners work together to ensure the Bulk Electric System (BES) has adequate reliability planning. 4. Clarified how Interchange occurs: The proposed revisions provide clarity regarding how the various functions and functional entities work together to perform Interchange, including incorporation of appropriate Glossary terms (i.e., Requests for Interchange, Arranged Interchange, Confirmed Interchange). Functional Model Advisory Group (FMAG) July

3 5. Added cyber and physical security tasks: The FMAG is proposing to add two new tasks related to security protections for cyber assets and physical assets, and communication regarding an actual or suspected threat to those assets. The new tasks have been added to the following functions: Reliability Coordinator (RC) Balancing Authority (BA) Transmission Operator (TOP) Transmission Owner (TO) Interchange Coordinator (IC) Distribution Provider (DP) Generator Owner (GO) Generator Operator (GOP). 45-day informal comment period The proposed revisions to the FM and FMTD are posted for a 45-day informal comment period. The FMAG will review all comments submitted and incorporate, as appropriate, proposed revisions to the FM and FMTD. In the documents posted for comment, the highlighted language is intended to indicate that the revision relates to a substantive change. The FMAG requests that you focus your comments on these highlighted revisions. Revisions that are not deemed substantive include revisions related to: Incorporation of a Glossary term; Clarification to the existing language (i.e., use of consistent terminology); Changes to the order or manner of presentation of information (i.e., rearrangement of tasks to follow a chronological order of how the tasks are performed); Consolidation of related items or removal of redundancies; and Changes to reflect how Interchange works, including incorporation of NERC Glossary terms. Below is a mapping of the proposed revisions, along with an explanation of why the revision was needed necessary. ID 1 General (Executive Summary, Introduction, Purpose, etc.) Consolidated general background information and into one section (Section I Purpose of the FM). Provided clear, concise summary of the purpose of the FM; also, explained that the FM is a guideline and not a standard, nor does it identify entities for NERC Registration. 2 Standards Developer Deleted entire section See Reliability Assurer section Functional Model Advisory Group (FMAG) July

4 3 Compliance Enforcement Authority Deleted entire section 4 Reliability Assurer Revised section to include greater detail regarding the tasks performed by the ERO (and the Regional Entities). See Reliability Assurer section Identified the various tasks performed by NERC (and the Regional Entities) in its role as the ERO. 5 Planning Coordinator Revised entire section to provide clarity regarding the differences in roles and tasks performed by the planning entities (i.e., Planning Authority, TP, and RP). Also, provided greater clarity regarding how the planners work together to ensure the BES has adequate reliability planning. New Tasks 1, 2, 3 work together to outline the sequential process followed by the PC to conduct transmission system assessments. The component of analysis and development of resource adequacy plans was intentionally removed from the PC tasks. With regard to the assessments performed: Both the TP and PC perform assessments to evaluate whether future transmission system performance will meet the minimum acceptable system performance requirements. However, the TP and PC may consider different system conditions (and BES facilities) in performing their respective assessments; this flexibility allows for studying a wider range of system conditions and allows for a more complete and comprehensive assessment of the BES. TP assessment includes the collection of transmission assets over which the TP is responsible for planning ( TP Area ). PC assessment includes the collection of transmission assets over which the PC is responsible for coordinating planning ( PC Area ). The PC Area is normally comprised of more than one TP. The PC focuses on assessments of both Transmission and resource planning for its PC Area. Every BES facility must have one associated TP and at least one PC. This means that every facility in the TP Area Functional Model Advisory Group (FMAG) July

5 should be included in the assessment conducted by the TP. 6 Transmission Planner Deleted Task. 7: Define system protection and control needs and requirements, including special protection systems (remedial action schemes), to meet reliability needs. 7 Transmission Planner Revised Relationship. 9: Deleted Resource Planner and added Planning Coordinator Submits and coordinates the plans for the interconnection of facilities to the Bulk Electric System within its Transmission Planner area with other Transmission Planners and the Planning CoordinatorResource Planners, as appropriate. 8 Transmission Planner Revised Relationship. 10: Added Planning Coordinator The nature of the TP s work requires that the TP has an understanding of the typical system protection and control schemes utilized by the associated Transmission Owner(s). Through interaction with the TO, the TP can also have an influence on the system protection scheme standards that a TO uses. In some instances, the TP may recommend a Remedial Action Scheme (RAS) as a means of addressing Transmission system performance issues. The TP s awareness of, and influence on, system protection schemes were viewed as an integral part of the TPs modeling and assessment tasks. The FMAG determined that a discussion of the TP s involvement with protection systems was better suited to the FMTD. Therefore the task was deleted. Removed Resource Planner and added Planning Coordinator because the PC is also concerned with transmission system assessments, whereas the RP is not. Added Planning Coordinator because of the PCs role and interest in assessing transfer capability. Functional Model Advisory Group (FMAG) July

6 Coordinates and develops transfer capability values with other Transmission Planners, Reliability Coordinators, Transmission Operators, Transmission Owners and Transmission Service Providers, and the Planning Coordinator. 9 Resource Planner Revised entire section to provide clarity and to distinguish resource planning tasks from other planning functions. Also, provided greater clarity regarding how the RPs interact with the TPs and Transmission Service Providers to ensure the BES has adequate resource planning. 10 Reliability Coordinator Added new Tasks: Added two new tasks regarding cyber and/or physical security. New Task. 11: Provide appropriate security protections for cyber assets and physical assets, and their related support systems and data. New Task. 12: Communicate to appropriate authorities and relevant functional entities of an actual or suspected attack on cyber assets and/or physical assets. 11 Reliability Coordinator Revised Relationship. 2: Added Distribution Providers Removed the prescriptive language to emphasize the completion of the task versus how to perform the task. Also, revised the language to improve clarity of the functional relationships. New Task. 11: Additional task necessary to identify RC reliability related responsibilities associated with cyber and physical security. New Task. 12: Additional task necessary to identify RC communication responsibilities associated with actual or suspected attacks on cyber assets and/or physical assets. Added DP because the RC receives reliability-related facility and operational data from the DP. Functional Model Advisory Group (FMAG) July

7 Receives facility and operational data from Generator Operators, Distribution Providers, Load-Serving Entities, Transmission Owners, Generator Owners, and Transmission Operators. 12 Reliability Coordinator Revised Relationship. 6: Develops Interconnection Reliability Operating Limits, and provide them to those entities with a reliability-related needbased on Transmission Owners and Generator Owners specified equipment ratings, and provides them to Transmission Operators. 13 Reliability Coordinator Deleted Relationship. 12: Duplicative Revised the relationship to reflect fact that RC establishes IROLs based on a number of factors (not limited to the equipment ratings); and the RC communicates the IROLs to various entities (not solely the TOP) based upon the specific requirements outlined in the RC s methodology or specific procedure in place. This is covered in Relationship. 6. Provide IROLs and TTC to the Transmission Service Provider for ATC calculation. 14 Balancing Authority Added new Tasks: Added two new tasks regarding cyber and/or physical security. New Task. 14: Provide appropriate security protections for cyber assets and physical assets, and their related support systems and data. New Task. 15: Communicate to appropriate authorities and relevant functional New Task. 14: Additional task necessary to identify BA reliability related responsibilities associated with cyber and physical security. New Task. 15: Additional task necessary to identify BA communication responsibilities associated with actual or suspected attacks on cyber assets and/or physical assets. Functional Model Advisory Group (FMAG) July

8 entities of an actual or suspected attack on cyber assets and/or physical assets. 15 Balancing Authority Added new Relationship: New Relationship. 1: Ahead of Time: Receive generator Facility plans from Generator Operators within the Balancing Authority Area. 16 Balancing Authority Added new Relationship: New Relationship. 2: Ahead of Time: Receive operational data from Generator Operators within the Balancing Authority Area. 17 Balancing Authority Deleted Relationship. 2: Duplicative Clarifies how and when information is provided from GOP in the BA Area. Clarifies how and when information is provided from the GO in the BA Area. Covered in Relationship. 14 Receive operating and availability status of generating units from Generator Operators within the Balancing Authority Area. 18 Balancing Authority Revised Relationship. 10: Removed GOP. Implements generator commitment and dispatch schedules from the Load-Serving Entities and Generator Operators who have arranged for generation within the Balancing Authority Area. Removed GOP because the information is from the LSE, not the GOP. The GOP operates the generator, the LSE has the schedule. Functional Model Advisory Group (FMAG) July

9 19 Balancing Authority Added new Relationship: 20 Transmission Operator Revised Task. 8: New Relationship. 1: Receive reports on frequency regulating equipment from Generator Operators within the Balancing Authority Area. Adjust Real Power, Reactive Power and voltage flow control devices within the transmission area to maintain reliability. 21 Transmission Operator Deleted Task. 9: Duplicative. Clarifies how and when information is provided associated with frequency regulation from the GOP in the BA Area. Revised language to improve clarity regarding the task performed, while not limiting or specifying how the TOP maintains parameters to ensure reliability. Repeat of Task. 8. Deploy reactive resources to maintain transmission voltage within defined limits. 22 Transmission Operator Added new Task: 23 Transmission Operator Added new Task: New Task. 9: Determine the Transmission capability that supports the Reliable Operation of the Transmission Operator Area. New Task. 10: Operate or direct the operation of Transmission Facilities in its TOP Area. Additional task supports the required Transmission capability assessments required to be completed by the TOP. Additional task necessary to correctly identify the TOP responsibilities associated with the operation of the Transmission System. Functional Model Advisory Group (FMAG) July

10 24 Transmission Operator Added new Tasks: Added two new tasks regarding cyber and/or physical security. New Task. 14: Provide appropriate security protections for cyber assets and physical assets, and their related support systems and data. New Task. 15: Communicate to appropriate authorities and relevant functional entities of an actual or suspected attack on cyber assets and/or physical assets. 25 Transmission Operator Revised Relationship. 11: Ahead of time: Provides Total Transfer Capabilities, and System Operating Limits, and methodology for calculating to, and coordinates Available Transfer Capability for respective Transmission paths to with, Transmission Service Provider. 26 Transmission Operator Revised Relationship. 12: Ahead of time: Receives operating and availability status of generating units from Generatorion Operators including status of automatic voltage regulators and power system stabilizers. New Task. 14: Additional task necessary to identify TOP reliability related responsibilities associated with cyber and physical security. New Task. 15: Additional task necessary to identify TOP communication responsibilities associated with actual or suspected attacks on cyber assets and/or physical assets. Revised language to improve clarity of the functional relationship. Added and power system stabilizers to identify the need of the TOP to be aware of component status. Functional Model Advisory Group (FMAG) July

11 27 Transmission Operator Added new Relationship: New Relationship.13: Ahead of time: Receive operational data from Generator Operators. Additional relationship necessary to ensure that the TOP has all necessary operational data to support Operations Planning functions and real-time contingency analysis. 28 Transmission Operator Revised Relationship. 18: Real-time: Deploys reactive resources from Transmission Owners, and Generator Owners, and Distribution Providers to maintain acceptable voltage profiles. 29 Transmission Operator Added new Relationship: New Relationship.24: Real-time: Receive Real-time operating information from Generator Operators. 30 Interchange Coordinator Added new Tasks: Added two new tasks regarding cyber and/or physical security. New Task. 9: Provide appropriate security protections for cyber assets and physical assets, and their related support systems and data. New Task. 10: Communicate to appropriate authorities and relevant functional entities of an actual or suspected attack on cyber assets and/or physical assets. Relationship expanded to include the DP as an operating authority for reactive resources. Additional relationship necessary to ensure that the TOP has all necessary operational data to support real-time contingency analysis. New Task. 9: Additional task necessary to identify IC reliability related responsibilities associated with cyber and physical security. New Task. 10: Additional task necessary to identify IC communication responsibilities associated with actual or suspected attacks on cyber assets and/or physical assets. Functional Model Advisory Group (FMAG) July

12 31 Interchange Coordinator Added new Relationship: New Relationship. 7: Receive reliability alerts from the Reliability Coordinators. This was a missing reciprocal relationship to an existing RC relationship. 32 Transmission Service Provider 33 Transmission Service Provider 34 Transmission Service Provider 35 Transmission Service Provider Revised Task. 2: Determine and post available transfer capability capacity values. Added new Task: New Task. 5: Acquire Ancillary Services to support Transmission Service. Added new Task: New Task. 6: Update information that is relevant to a long-term Transmission Service arrangement. Added new Relationship: New Relationship. 1: Ahead of Time: Receive the methodology to determine available transfer capacity from the Transmission Operator. Changed capability to capacity to avoid Glossary conflict. Added task to recognize provider of last resort responsibilities for required Ancillary Services to support Transmission Services in the Open Access Transmission Tariff. Added task to support an existing reciprocal relationship with TP. Added relationship to recognize TOP responsibility to develop methodology. Functional Model Advisory Group (FMAG) July

13 36 Transmission Service Provider Revised Relationship. 1: Ahead of Time: Receives Total Transfer Capabilities, System Operating Limits and Interconnection Reliability Operating Limits from Planning Coordinator, the Transmission Planner, Transmission Operator and Reliability Coordinator, and coordinates Aavailable Ttransfer capacity Capability with these entities and other Transmission Service Providers. Deleted PC. Changed ATC to available transfer capacity to avoid Glossary conflict. 37 Transmission Service Provider 38 Transmission Service Provider 39 Transmission Service Provider Revised Relationship. 3: Ahead of Time: Receives ttransmission expansion plans identified by the Transmission Planner(s)Planning Coordinator to help determine ability to accommodate long-term transmission service requests. Added new Relationship: New Relationship. 4: Ahead of Time: Arrange for providers of Ancillary Services, and notify the Transmission Operator and Balancing Authority. Added new Relationship: Changed PC to TP. Supports newly added task to provider of last resort responsibilities for required Ancillary Services to support Transmission Services in the Open Access Transmission Tariff. Supports newly added task to provider of last resort responsibilities for required Ancillary Services to support Transmission Services in the Open Access Transmission Tariff. Functional Model Advisory Group (FMAG) July

14 New Relationship. 15: tify the Transmission Operator and Balancing Authority of changes to Ancillary Services. 40 Transmission Owner Added new Tasks: Added two new tasks regarding cyber and/or physical security. New Task. 6: Provide appropriate security protections for cyber assets and physical assets, and their related support systems and data. New Task. 7: Communicate to appropriate authorities and relevant functional entities of an actual or suspected attack on cyber assets and/or physical assets. 41 Transmission Owner Revised Relationship. 1: New Task. 6: Additional task necessary to identify TO reliability related responsibilities associated with cyber and physical security. New Task. 7: Additional task necessary to identify TO communication responsibilities associated with actual or suspected attacks on cyber assets and/or physical assets. Deleted GO and LSE. Clarified scope. Coordinates with Transmission Planners and the Planning Coordinator, Generator Owners, other Transmission Owners, and Load-Serving Entities desiring to connect with the Bulk Electric System. 42 Transmission Owner Revised Relationship. 9: Deleted LSE. Develops interconnection agreements with the Distribution Providers and Generation Owners for connecting to the Bulk Electric System. Functional Model Advisory Group (FMAG) July

15 43 Distribution Provider Revised Task. 1: 44 Distribution Provider Added New Task: Provide and operate electrical delivery ffacilities between the ttransmission system and the Eend-uUse Ccustomer or distributionconnected energy resource. New Task. 2: Identify and characterize its connected load and energy resources. 45 Distribution Provider Added new Tasks: Added two new tasks regarding cyber and/or physical security. New Task. 7: Provide appropriate security protections for cyber assets and physical assets, and their related support systems and data. New Task. 8: Communicate to appropriate authorities and relevant functional entities of an actual or suspected attack on cyber assets and/or physical assets. 46 Distribution Provider Revised Relationship. 1: Added distribution-connected energy resource to recognize increasing number of these types of resources that impact the amount of energy supplied to the BES. DP should understand the characteristics of the load and resources connected to its system, which can have an impact on the BES performance. New Task. 7: Additional task necessary to identify DP reliability-related responsibilities associated with cyber and physical security. New Task. 8: Additional task necessary to identify DP communication responsibilities associated with actual or suspected attacks on cyber assets and/or physical assets. Added energy resources instead of only load. Ahead of time: Coordinates with Transmission Planners on interconnected load and energy Functional Model Advisory Group (FMAG) July

16 resources to support ttransmission analysisexpansion. 47 Distribution Provider Revised Relationship. 3: Ahead of time: Coordinates with Eend-use Ccustomers, distributed energy resources, and Load-Serving Entities to identify new ffacility connection needs. 48 Distribution Provider New Relationship added: Added distribution-connected energy resource to recognize increasing number of these types of resources that impact the amount of energy supplied to the BES. Relationship added to support existing Task. 4 New Relationship. 7: Ahead of time: Provide protective relaying systems, underfrequency Load shedding systems, undervoltage Load shedding systems, and Remedial Action Schemes as defined by the Transmission Planner and Planning Coordinator. 49 Distribution Provider New Relationship added: Relationship added to support existing Task. 6 New Relationship. 8: Real-time: Obtain voltage and power factor requirements from the Transmission Operator. 50 Generator Operator Revised Task. 5: Accounted for GOP task of contributing to voltage support. Support Interconnection frequency and voltage. Functional Model Advisory Group (FMAG) July

17 51 Generator Operator Added new Tasks: Added two new tasks regarding cyber and/or physical security. New Task. 6: Provide appropriate security protections for cyber assets and physical assets, and their related support systems and data. New Task. 7: Communicate to appropriate authorities and relevant functional entities of an actual or suspected attack on cyber assets and/or physical assets. New Task. 6: Additional task necessary to identify GOP reliability related responsibilities associated with cyber and physical security. New Task. 7: Additional task necessary to identify GOP communication responsibilities associated with actual or suspected attacks on cyber assets and/or physical assets. 52 Generator Operator Revised Relationship. 3: Added RC. Ahead of Time: Provides availability and operating and availability status of generatoring Facilitiesunits to Reliability Coordinator, Balancing Authority and Transmission Operators for reliability analysis. 53 Generator Operator Revised Relationship. 4: Deleted frequency regulating equipment; added as a new task. Ahead of Time: Reports status of automatic voltage regulating equipment and power system stabilizer equipment or frequency regulating equipment to Transmission Operators. 54 Generator Operator Added new Relationship: Added new Relationship to support existing Task. Functional Model Advisory Group (FMAG) July

18 New Relationship. 5: Ahead of Time: Report on frequency regulating equipment to Balancing Authority. 55 Generator Operator Revised Relationship. 5: Added BA and TOP. Ahead of Time: Provides operational data to Reliability Coordinator, Balancing Authority and Transmission Operator. 56 Generator Owner Added new Tasks: Added two new tasks regarding cyber and/or physical security. New Task. 5: Provide appropriate security protections for cyber assets and physical assets, and their related support systems and data. New Task. 6: Communicate to appropriate authorities and relevant functional entities of an actual or suspected attack on cyber assets and/or physical assets. 57 Generator Owner Revised Relationship. 2: New Task. 5: Additional task necessary to identify GO reliability related responsibilities associated with cyber and physical security. New Task. 6: Additional task necessary to identify GO communication responsibilities associated with actual or suspected attacks on cyber assets and/or physical assets. Added RC. Provides Facilityunit maintenance schedules and unit generator Facility retirement plans to the Reliability Coordinator, Transmission Operator, Balancing Authority, Transmission Planner, and Resource Planner. Functional Model Advisory Group (FMAG) July

19 58 Generator Owner Revised Relationship. 7: Revises the generatorion maintenance plans as requested by the Balancing Authority, Transmission Operator, and Reliability Coordinator. Added BA and TOP. 59 Purchasing-Selling Entity Added Added missing reciprocal relationship for Task. 1. New Relationship. 1: Arrange for energy and capacity from Generator Owners. 60 Load-Serving Entity Revised Task. 3: Added communication element. Identify and communicate Participate in under-frequency load shedding systems and under-voltage load shedding systems through identification of critical customer loads that are to be excluded from the load shedding systems. 61 Load-Serving Entity Revised Relationship. 1: Ahead of Time: Submits load dataprofiles and characteristics, plans, and forecasts as needed to the appropriate entity (e.g., Balancing Authorities, Purchasing-Selling Entities, Planning Coordinator, Resource Planners, and Transmission Service ProvidersPlanners) in Link the load data submission need and types to applicable tariff, interconnection agreements or other arrangements as opposed to a generic set. Functional Model Advisory Group (FMAG) July

20 accordance with applicable tariffs, interconnection agreements or other arrangements. 62 Load-Serving Entity Revised Relationship. 2: Ahead of Time: Coordinate with Distribution Provider to identify critical loads that are to be excluded from load-sheddingidentifies new facility connection needs for End-use Customers. 63 Load-Serving Entity Revised Relationship. 12: Clarify that the DP is the entity impacted by the identified information. Added RC and TOP, who also make these requests. Real-time: Receives requests from the Reliability Coordinator, Balancing Authority, Transmission Operator, and Distribution Provider for voluntary load ccurtailment. 64 Load-Serving Entity Revised Relationship. 13: Added RC and TOP, who also make these requests. Real-time: Communicate requests for voluntary load ccurtailment to end-use customers as directed by the Reliability Coordinator, Balancing Authority, Transmission Operator and Distribution Provider. Functional Model Advisory Group (FMAG) July