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Public Review Draft Standards

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Click on a “Comment” link in the list below to submit comments for the corresponding Public Review Drafts. Click the Standard title in the list below to view its details.

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IMPORTANT: The public review period closes at midnight U.S. Eastern Time on the last day of the review period.

Continuous Maintenance Documents

Click on the “Proposal” link in the list below to submit a proposal for the corresponding Continuous Maintenance Document.

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ASHRAE Guideline 0 The Commissioning Process for New Buildings and New Systems
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ASHRAE Guideline 1.1 Application of the Commissioning Process to New HVAC&R Systems
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ASHRAE Guideline 1.4 Preparing Systems Manuals for Facilities
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ASHRAE Guideline 1.5 Application of the Commissioning Process to Smoke Control Systems
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ASHRAE Guideline 10 Interactions Affecting the Achievement of Acceptable Indoor Environments
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ASHRAE Guideline 12 Managing the Risk of Legionellosis Associated With Building Water Systems
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ASHRAE Guideline 13 Specifying Building Automation Systems
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ASHRAE Guideline 14 Measurement of Energy, Demand and Water Savings
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ASHRAE Standard 15 Safety Standard for Refrigeration Systems
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ASHRAE Standard 15.2 Safety Standard for Refrigeration Systems in Residential Applications
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ASHRAE Guideline 28 Air Quality Within Commercial Aircraft
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ASHRAE Standard 30 Method of Testing Liquid Chillers
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ASHRAE Standard 34 Designation and Safety Classification of Refrigerants
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ASHRAE Guideline 36 High-Performance Sequences of Operation for HVAC Systems
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ASHRAE Guideline 41 Design, Installation and Commissioning of Variable Refrigerant Flow (VRF) Systems
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ASHRAE Guideline 42 Enhanced Indoor Air Quality in Commercial and Institutional Buildings
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ASHRAE/ASHE Guideline 43 Operations Guideline for Ventilation of Health Care Facilities
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ASHRAE Guideline 44 Protecting Building Occupants from Smoke During Wildfire and Prescribed Burn Events
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ASHRAE Standard 52.2 Method of Testing General Ventilation Air-Cleaning Devices for Removal Efficiency by Particle Size
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ASHRAE Standard 55 Thermal Environmental Conditions for Human Occupancy
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ASHRAE Standard 62.1 Ventilation and Acceptable Indoor Air Quality
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ASHRAE Standard 62.2 Ventilation and Acceptable Indoor Air Quality in Residential Buildings
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ASHRAE Standard 72 Method of Testing Open and Closed Commercial Refrigerators and Freezers
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ASHRAE/IES Standard 90.1 Energy Standard for Sites and Buildings Except Low-Rise Residential Buildings
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ASHRAE/IES Standard 90.2 High-Performance Energy Design of Residential Buildings
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ASHRAE Standard 90.4 Energy Standard for Data Centers
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ASHRAE/IES Standard 100 Energy and Emissions Building Performance Standard for Existing Buildings
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ASHRAE Standard 127 Method of Testing for Rating Air-Conditioning Units Serving Data Center (DC) and Other Information Technology Equipment (ITE) Spaces
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ASHRAE Standard 135 BACnet® - A Data Communication Protocol for Building Automation and Control Networks
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ASHRAE Standard 135.1 Method of Test for Conformance to BACnet®
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ASHRAE/IBPSA Standard 140 Method of Test for Evaluating Building Performance Simulation Software
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ASHRAE Standard 145.1 Laboratory Test Method for Assessing the Performance of Gas-Phase Air-Cleaning Systems: Loose Granular Media
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ASHRAE Standard 145.2 Laboratory Test Method for Assessing the Performance of Gas-Phase Air-Cleaning Systems: Air-Cleaning Devices
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ASHRAE Standard 147 Reducing the Release of Halogenated Refrigerants from Refrigerating and Air-Conditioning Equipment and Systems
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ASHRAE Standard 154 Ventilation for Commercial Cooking Operations
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ASHRAE Standard 160 Criteria for Moisture-Control Design Analysis in Buildings
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ASHRAE Standard 161 Air Quality within Commercial Aircraft
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ASHRAE Standard 169 Climatic Data for Building Design Standards
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ASHRAE/ASHE Standard 170 Ventilation of Health Care Facilities
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ASHRAE Standard 185.1 Method of Testing UV-C Lights for Use in Air-Handling Units or Air Ducts to Inactivate Airborne Microorganisms
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ASHRAE Standard 185.2 Method of Testing Ultraviolet Lamps for Use in HVAC&R Units or Air Ducts to Inactivate Microorganisms on Irradiated Surfaces
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ASHRAE Standard 188 Legionellosis: Risk Management for Building Water Systems
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ASHRAE/USGBC/IES/ICC Standard 189.1 Standard for the Design of High-Performance Green Buildings Except Low-Rise Residential Buildings
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ASHRAE/ASHE Standard 189.3 Design, Construction, and Operation of Sustainable High-Performance Health Care Facilities
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ASHRAE/IES Standard 202 The Commissioning Process Requirements for New Buildings and New Systems
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ASHRAE/IBPSA Standard 205 Representation of Performance Data for HVAC&R and Other Facility Equipment
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ASHRAE/IBPSA Standard 209 Building Performance Simulation Process
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ASHRAE Standard 211 Standard for Commercial Building Energy Audits
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ASHRAE Standard 221 Test Method to Field-Measure and Score the Cooling and Heating Performance of an Installed Unitary HVAC System
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ASHRAE Standard 224 Standard for the Application of Building Information Modeling
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ASHRAE Standard 228 Standard Method of Evaluating Zero Net Energy and Zero Net Carbon Building Performance
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ASHRAE Standard 230 The Commissioning Process Requirements for Existing Buildings and Systems
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ASHRAE/IBPSA Standard 232 Common Content and Specifications for Building Data Schemas
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ASHRAE Standard 514 Risk Management for Building Water Systems: Physical, Chemical, and Microbial Hazards

Welcome!

Public Review Draft Standards

45-Day Public Review Period from March 20, 2026, to May 04, 2026

45-Day Public Review Period from March 27, 2026, to May 11, 2026

45-Day Public Review Period from April 10, 2026 to May 25, 2026

30-Day Public Review Period from April 17, 2026 to May 17, 2026

45-Day Public Review Period from April 03, 2026 to May 18, 2026

45-Day Public Review Period from April 17, 2026, to June 01, 2026

30-Day Public Review Period from April 03, 2026 to May 03, 2026

45-Day Public Review Period from April 24, 2026, to June 08, 2026

30-Day Public Review Period from April 24, 2026 to May 24, 2026

30-Day Public Review Period from May 01, 2026, to May 31, 2026

45-Day Public Review Period from May 01, 2026, to June 15, 2026

Continuous Maintenance Documents