9.4 Establishing EBCx Scope & Preparing the EBCx Plan

ASHRAE Building Commissioning Professional BCxP

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1 Introduction & Exam Overview

About the ASHRAE BCxP Certification Exam & the October 2026 Blueprint Change BCxP Blueprint, Domain Weighting & Study Strategy Core Commissioning Standards, Guidelines & Codes for the BCxP

2 Chapter 1: Commissioning Scope, Roles, Team & Budget

1.1 Commissioning Scope & Project Initiation 1.2 Commissioning Team Organization & Stakeholder Roles 1.3 Commissioning Budget, Resource Allocation & Value Engineering

3 Chapter 2: Project Management, Communication & Risk

2.1 Commissioning Schedule & Construction Coordination 2.2 Commissioning Meetings, Protocols & Communication 2.3 Risk Management, Conflict Resolution & Issue Escalation 2.4 Project Meetings, Preinstallation Conferences & Verifying Scope Obligations

4 Chapter 3: Foundational Criteria: OPR, CFR & Basis of Design

3.1 Owner's Project Requirements (OPR) Development 3.2 Basis of Design (BOD) & Current Facility Requirements (CFR) 3.3 Commissioning Specifications & Contract Requirements

5 Chapter 4: Commissioning Plans, Reviews & Process Records

4.1 The Commissioning Plan Lifecycle 4.2 Design Phase & Submittal Review Protocols 4.3 Process Tracking: Checklists, Issues Log, Systems Manual & Final Report 4.4 Defining Building Systems in Scope & the Commissioned Equipment List 4.5 Documenting Commissioning Meetings, Minutes & Records Control

6 Chapter 5: Construction Verification & Startup Readiness

5.1 Construction Site Observations & Material Verification 5.2 Pre-functional Checklists (PFC) & Equipment Startup 5.3 TAB Verification & BAS Calibration Verification 5.4 Managing Commissioning Activities Across All Project Phases

7 Chapter 6: Functional Performance Testing & Systems Integration

6.1 Functional Performance Test (FPT) Design & Scripting 6.2 HVAC & Mechanical System Functional Testing 6.3 Electrical, Emergency Power & Life Safety Integration 6.4 BAS Trend Log Analysis & Retesting Protocols 6.5 Tracking Issues & the Resolution Workflow

8 Chapter 7: Closeout Support: Training, Third-Party Documentation & Turnover

7.1 Training Plan Development & Training Needs Assessment 7.2 Training Execution, Video Documentation & Effectiveness Evaluation 7.3 Third-Party Testing Documentation & Contractor Turnover Package Review

9 Chapter 8: Post-Occupancy Operation & Warranty Phase Activities

8.1 Seasonal & Deferred Testing 8.2 End-of-Warranty Review, Trend Monitoring & Closeout

10 Chapter 9: EBCx Planning, Investigation & Facility Assessment

9.1 EBCx Process Fundamentals, Goals & CFR 9.2 Historical Data Collection, Utility Benchmarking & Operator Interviews 9.3 Detailed Field Investigation, Data Logging & Diagnostic Testing 9.4 Establishing EBCx Scope & Preparing the EBCx Plan

11 Chapter 10: EBCx Measure Selection, Implementation & Verification

10.1 Identification & Screening of Operational / Low-Cost ECMs 10.2 Energy Savings Calculation & Financial Life-Cycle Analysis 10.3 Implementation Oversight & Post-Implementation Verification 10.4 Final EBCx Reporting, Handover & Systems Manual Update 10.5 EBCx Training & Operator Knowledge Transfer

12 Chapter 11: Ongoing Commissioning & Monitoring-Based Persistence

11.1 Ongoing Commissioning Framework & Monitoring Plans 11.2 Automated Fault Detection and Diagnostics (AFDD) & Analytics 11.3 Performance Tracking, KPIs & Long-Term Persistence 11.4 Ongoing Commissioning Reporting & Stakeholder Communication

9.4 Establishing EBCx Scope & Preparing the EBCx Plan

Key Takeaways Explain This Topic AI

The October 2026 blueprint makes establishing the EBCx scope (3 questions) and preparing the EBCx Plan (2 questions) separate Domain 6 line items worth 5 questions before any field work.

EBCx scope must be bounded in writing along six dimensions: physical boundary, system boundary, depth of investigation, measure boundary, implementation role, and verification rigor.

Because ASHRAE Guideline 0.2-2015 is advisory rather than normative, EBCx scope has no standard compelling it and must be fixed contractually in the owner-provider agreement.

Scoping inputs that must precede a fee proposal include 24 to 36 months of utility data, BAS trend capability, the owner's top operational complaints, available documentation, and operator staffing levels.

Shutdown windows, seasonal dependencies, access and security restrictions, operator availability, and data quality are constraints that must be documented in the EBCx Plan, because discovering them mid-investigation is a planning failure rather than an unforeseeable event.

Last updated: September 2026

9.4 Establishing EBCx Scope & Preparing the EBCx Plan

Quick Summary: The October 2026 blueprint made two Domain 6 activities explicit line items: establish the scope of project (3 questions) and prepare the EBCx Plan (2 questions) — 5 of the domain's 28 questions before any field work begins. This is deliberate. Existing building commissioning fails far more often from bad scoping than from bad diagnostics: the provider investigates systems the owner does not care about, misses the systems driving the owner's complaint, or commits to savings the building cannot deliver. The Planning Phase is where those failures are prevented.

1. Why EBCx Scoping Is Harder Than New Construction Scoping

In new construction, scope is bounded by the contract documents: there is a defined set of new systems, a design intent, and a schedule. In an existing building, none of that is reliable:

The building has been modified, often undocumented.

The original design intent is obsolete, missing, or irrelevant to current use.

Systems are in unknown condition, and their condition is what determines the level of effort.

The owner's stated goal ("reduce energy") is often not the real driver ("the executive floor is too hot and I am tired of the complaints").

There is no normative standard compelling scope. Guideline 0.2-2015 is advisory, so everything must be fixed contractually.

Start With the Owner's Actual Drivers

Before any technical scoping, the provider establishes which of the recognized EBCx drivers apply and in what priority:

Driver What it implies for scope
Energy cost and carbon reduction Utility analysis, central plant, scheduling, resets, economizers
Comfort complaints and IEQ Zone-level investigation, ventilation verification, terminal units, controls
Reliability and equipment life Runtime analysis, short-cycling, maintenance practice, sequencing

Regulatory compliance (energy benchmarking or performance ordinances) Metering, benchmarking documentation, defined measurement basis

Deferred maintenance and capital planning Condition assessment feeding a capital plan rather than tuning
Transition from reactive to proactive maintenance CMMS review, PM program, operator capability

An owner who cannot rank these will get a project that satisfies none of them. Forcing the ranking is the provider's first substantive act.

Boundary discipline: EBCx optimizes what exists. When the investigation shows the real answer is equipment replacement, that finding is reported — but executing a capital retrofit is a different project with different economics. A scope that quietly slides from operational tuning into capital replacement is the classic EBCx scope failure.

2. The Dimensions of EBCx Scope

Scope must be pinned down along six dimensions, in writing:

Physical boundary. Which buildings, floors, and areas. On a campus, whether central plant and distribution are included or only building-level systems.

System boundary. Which systems: HVAC only, or lighting, domestic hot water, plug loads, envelope, vertical transportation, process loads.

Depth of investigation. Documentation review only; documentation plus operator interviews and BAS trend analysis; or full field investigation with portable data logging and functional diagnostic testing.

Measure boundary. Operational and low-cost only, or measures up to a defined capital threshold.

Implementation role. Whether the provider only recommends, or also oversees implementation and verifies results. This single choice can double or halve the fee.

Verification rigor. Whether savings are estimated by engineering calculation or verified under a defined M&V option, since IPMVP Option B or D verification costs far more than Option A.

Scoping Inputs That Should Precede the Fee Proposal
24 to 36 months of utility data, at minimum a bill summary
Building age, area, use type, and occupancy schedule

BAS make, version, point count, and trend capability — trend capability determines whether remote analysis is even possible

A short list of the owner's top operational complaints
Available documentation: drawings, sequences, prior studies, prior audits
Staffing: how many operators, what shifts, what skill level

A provider who proposes an EBCx scope without these is guessing, and the guess is almost always low.

3. Preparing the EBCx Plan

The EBCx Plan is the Planning Phase deliverable. It is the existing-building analogue of the commissioning plan, and the blueprint weights it as its own task because it governs everything downstream.

Required Content

Section Content
Objectives and drivers The owner's ranked drivers, stated as measurable goals
Current Facility Requirements The CFR, or the plan and schedule to develop it
Scope All six dimensions above, explicitly bounded, with exclusions named

Team and roles Provider, owner representative, operations staff, contractors, and the specific time commitment expected from operators

Investigation methodology Document review, interviews, utility analysis, trend analysis, field investigation, data logging, diagnostic testing — with the depth for each

Instrumentation plan What will be measured, with what, for how long, and where loggers will be placed
Schedule Phase durations, seasonal constraints, and access windows
Findings and measure documentation The findings log structure and the format for measure recommendations
Screening and prioritization criteria How measures will be ranked before they are proposed
Implementation approach Who implements, and the provider's oversight role
Verification and M&V approach Method and rigor for confirming results
Persistence and handover What is transferred to operations, training, and the ongoing commissioning transition

Assumptions, constraints, exclusions Explicitly stated — access limits, shutdown restrictions, data availability

Constraints That Belong in the Plan Because They Will Otherwise Ambush You

Shutdown windows. In hospitals, data centers, and laboratories, testing that interrupts service may be permitted only at defined times, sometimes only twice a year.

Seasonal dependencies. Cooling diagnostics need cooling weather. A plan that ignores season will defer half its findings by a year.

Access and security. Tenant spaces, secure areas, and occupied patient areas require notice and escorts that consume real schedule.

Operator availability. Interviews and BAS access require operator time the facility may not be able to give. If the plan assumes 40 hours of operator support, the plan says so.

Data quality. If the BAS cannot trend, or meters are broken, the investigation methodology must change and the plan must say what happens.

Exam pattern: a scenario describes an EBCx project that discovered a major constraint mid-investigation. The correct answer traces the failure to the Planning Phase — the constraint should have been identified and documented in the EBCx Plan — rather than treating it as an unforeseeable event.

4. The Plan Is a Living Document

Like the commissioning plan, the EBCx Plan is revised when the project learns something material: the investigation reveals a system in far worse condition than assumed, the owner changes priorities, a measure requires capital the scope excluded, or the CFR is revised. Each revision is dated, issued, and acknowledged by the owner. A plan that never changes over a nine-month EBCx project was not being used.