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Why Join ASHRAE

ASHRAE Membership

ASHRAE membership is open to any person associated with heating, ventilation, air conditioning or refrigeration. ASHRAE is unique because its membership is drawn from a wide range of disciplines relating to the HVAC&R field. Approximately 51,000 individuals from more than 100 nations belong to the Society

Discounts on Publications

ASHRAE members earn 15% off publications through www.ashrae.org/bookstore. Hundreds of titles are available including the complete collection of ASHRAE Standards including 90.1, 62.1 and 189.1.

Develop Leadership Skills

When you join ASHRAE, you are making an investment in yourself. When you become active in the Society by giving your time and sharing your knowledge, you get even more out of that investment.

Network with Industry Professionals

Each month, all over the world, ASHRAE chapters convene for an informational program featuring a speaker or topic that is key to professionals in the industry. Meet with your peers and share ideas!
 
 
Need technical info? Search ASHRAE's Bookstore >
 
 
Standards, Research & Technology
 

 

 

Standards Addenda

Addenda for ASHRAE Standards, including continuous maintenance standards, are available online in PDF format. Standards that are on continuous maintenance are continuously updated through addenda and ASHRAE makes these available free online.

If you wish to comment on one or more addenda, please use:

Form for Submittal of Proposed Change to ASHRAE Standard Under Continuous Maintenance


Guideline 0, The Commissioning Process

Guideline 0: Addenda a, b, c, d

 

Guidelines 1, 5, 30,31

Effective upon the publication of ASHRAE Guideline 1.1-2007, The HVAC Commissioning Process, Standards Committee approved the renumbering of the ASHRAE commissioning guidelines  as follows:

  1. Guideline 1 will become Guideline 1.1, The HVAC Commissioning Process
  2. Guideline 30 will become Guideline 1.2, The Commissioning Process for Existing HVAC&R Systems
  3. Guideline 31 will become Guideline 1.3, Building Operations and Maintenance Training for HVAC&R  Commissioning Process
  4. Guideline 5 will become Guideline 1.5, Commissioning Smoke Control Systems
 

Guideline 13-2007, Specifying Direct Digital Control Systems

Addenda a to Guideline 13-2007

Addenda b, c, d to Guideline 13-2007

Addenda f to Guideline 13-2007

 

Guideline 13-2000, Specifying Direct Digital Control Systems

Guideline 13-2000: Addenda b, d, l, m, n, p, q

Addenda to Guideline 13

 

Guideline 29-2009, Guideline for Risk Management of Public Health and Safety in Buildings

Addendum a to Guideline 29-2009

 

Standard 15-1994, Safety Code for Mechanical Refrigeration

Addenda to Standard 15-1994

 

Standard 15-2001, Safety Standard for Refrigeration Systems

Addendum to Standard 15-2001

 

Standard 15-2004, Safety Standard for Refrigeration Systems

The Addenda Package contains Addendum b

Addendum c can be found in Addenda to Standard 15-2004

Standard 15-2004: Addenda Supplement Package (PDF) 

Addendum for Standard 15-2004

 

Standard 15-2007, Safety Standard for Refrigeration Systems

Standard 15-2007 Addenda Supplement Package (Contains Addenda a, b, c, d, and e)

Addenda f and h for Standard 15-2007

Addendum g for Standard 15-2007

Addendum i for Standard 15-2007

 

ANSI/ASHRAE Standard 15-2010, Safety Standard for Refrigeration Systems

The 2012 Addenda Suppplement contains Addenda b, c, d, e, and f

Standard 15-2010: 2012 Addenda Supplement

 

ANSI/ASHRAE Standard 34-1997, Number Designation and Safety Classification of Refrigerants

Addenda for Standard 34-1997

 

ANSI/ASHRAE Standard 34-2001, Designation and Safety Classifications of Refrigerants

Addenda to Standard 34-2001

 

ANSI/ASHRAE Standard 34-2004, Designation and Safety Classification of Refrigerants

The Addenda Package contains Addenda a, b, c, e, f, k, n, o, p, q, r, s, and u

Addenda, g, h & i can be found in Other Addenda to Standard 34-2004.

Standard 34-2004: Addenda Supplement Package (PDF)

Standard 34-2004: Addenda d, j, l, m, t (PDF)

Standard 34-2004: Addenda v, w (PDF)

Other Addenda to Standard 34-2004

 

ANSI/ASHRAE Standard 34-2007, Designation and Safety Classification of Refrigerants

Standard 34-2007: Addenda a, b,c,d,e,f,g,h

Standard 34-2007: Addenda i, j, k

Standard 34-2007: Addendum l  

Standard 34-2007: Addenda m through v

Standard 34-2007: Addendum w

Standard 34-2007: Addenda x, y, aa, ab, ac, ad, and ae

Standard 34-2007: Addenda af and ag

Standard 34-2007: Addendum ak

 

Standard 34-2010, Designation and Safety Classification of Refrigerants

Standard 34-2010: Addenda a, b, d

Standard 34-2010: Addendum c

Standard 34-2010: Addenda e, f, g, h

Standard 34-2010: Addenda i, j, k, l, n, o

Standard 34-2010: Addenda p, q, r, s, t, u, v, and y 

 

ANSI/ASHRAE/AMCA 51-1999, Laboratory Methods of Testing Fans for Aerodynamic Performance Rating

Addendum to Standard 51-1999/AMCA 210-99

 

ANSI/ASHRAE Standard 52.2-1999, Method of Testing General Ventilation Air-Cleaning Devices for Removal Efficiency by Particle Size

This Addenda Package includes Addendum a.

Standard 52.2-1999: Addenda Supplement Package 

 

 

Standard 52.2-2007, Method of Testing General Ventilation Air-Cleaning Devices for Removal Efficiency by Particle Size

Standard 52.2-2007 Addenda Supplement Package (Contains Addendum b)

 

Standard 55-1992, Thermal Environmental Conditions for Human Occupancy

Addendum to Standard 55-1992

 

Standard 55-2004, Thermal Environmental Conditions for Human Occupancy

Addenda a and b to Standard 55-2004

Addenda d, e, f, and g to ANSI/ASHRAE Standard 55-2004

Addendum h to ANSI/ASHRAE Standard 55-2004

Addenda i and k to ANSI/ASHRAE Standard 55-2004

Addendum j to ANSI/ASHRAE Standard 55-2004

 

ANSI/ASHRAE Standard 55-2010, Thermal Environmental Conditions for Human Occupancy

Addendum a to Standard 55-2010

Addendum b to Standard 55-2010

Addendum c to Standard 55-2010

Addendum d to Standard 55-2010

 

ANSI/ASHRAE 62-1999, Ventilation for Acceptable Indoor Air Quality

Addenda to Standard 62-1999

 

ANSI/ASHRAE 62-2001, Ventilation for Acceptable Indoor Air Quality

Addenda to Standard 62-2001

 

ANSI/ASHRAE Standard 62.1-2004, Ventilation for Acceptable Indoor Air Quality

Standard 62.1-2004: Addenda Supplement Package (This Addenda Package contains Addenda a, b, c, d, and g.)

Standard 62.1-2004: Addendum e and f (Contains Addenda e and f)

Standard 62.1-2004 Addendum h

 

ANSI/ASHRAE Standard 62.1-2007, Ventilation for Acceptable Indoor Air Quality

Standard 62.1-2007 Addenda Supplement Package (Contains Addenda a, b, e, f, and h)

Standard 62.1-2007 Addenda c, d, i, and p

Standard 62.1-2007 Addendum j

Standard 62.1-2007 Addendum k

Standard 62.1-2007 Addenda l, m, n, o, and s

Standard 62.1-2007 Addendum q

Standard 62.1-2007 Addenda g, r, and t

 

ANSI/ASHRAE Standard 62.1-2010, Ventilation for Acceptable Indoor Air Quality

Standard 62.1-2010 Addenda Supplement Package (Contains Addenda a, c, d, and e)

 

ANSI/ASHRAE Standard 62.2-2003, Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings

Addenda to Standard 62.2-2003

 

ANSI/ASHRAE Standard 62.2-2004, Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings

The Addenda Package contains Addendum g.

Addenda, e, h, and i can be found in Addenda to Standard 62.2-2004.

Standard 62.2-2004: Addenda Supplement Package (PDF) 

Addenda to Standard 62.2-2004

 

ANSI/ASHRAE Standard 62.2-2004, Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings

Standard 62.2-2007 Addenda Supplement Package (Contains Addenda a, b, c, and k)

Standard 62.2-2007 Addendum d

Standard 62.2-2007 Addendum e

Standard 62.2-2007 Addenda f, g, h, and i

Standard 62.2-2007 Addendum j

Standard 62.2-2007 Addenda m, n, o, p, and t

Standard 62.2-2007 Addenda q and r

 

Standard 62.2-2010, Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings

Standard 62.2-2010 Addenda Supplement Package (Contains Addenda b, c, e, g, h, i, and l)

Standard 62.2-2010 Addendum j

Addendum n to 62.2-2010

 

Standard 90.1-1999, Energy Standard for Buildings Except Low-Rise Residential Buildings

Addenda to Standard 90.1-1999

 

Standard 90.1-2001, Energy Standard for Buildings Except Low-Rise Residential Buildings

Addenda to Standard 90.1-2001 (I-P and SI versions)

 

Standard 90.1-2004, Energy Standard for Buildings Except Low-Rise Residential Buildings (I-P and SI versions)

Addenda are listed as marked in the other Addenda packages.

Standard 90.1-2004: Addenda Supplement Package (Addenda Package includes a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, r, s, t, u, v, x, and ak)

Standard 90.1-2004: Addendum q

Standard 90.1-2004: Addendum y

Standard 90.1-2004: Addenda aa, ab, ag, ah, aj, al, and am

Standard 90.1-2004: Addenda ac, an, and ao

Standard 90.1-2004: Addendum ad

Standard 90.1-2004: Addenda ae and ai

Standard 90.1-2004: Addenda ap, aq, ar, and av

Standard 90.1-2004: Addenda as and at

 

Standard 90.1-2007, Energy Standard for Buildings Except Low-Rise Residential Buildings (I-P and SI)

Standard 90.1-2007: Addenda Supplement Package (Addenda Package includes Addenda a, b, c, g, h, i, j, k, l, m, n, p, q, s, t, u, w, y, ad, and aw )

Standard 90.1-2007: Addendum r

Standard 90.1-2007 Addenda

 

Standard 90.1-2010, Energy Standard for Buildings Except Low-Rise Residential Buildings (I-P and SI)

Standard 90.1-2010, Addenda 2012 Supplement: Addenda Supplement Package (Addenda Packaga includes Addenda a, b, c, g, h, j, k, o, p, s, y, z, bz, cg, ci, and ds)

 

Standard 90.2-1993, Energy Efficient Design of New Low-Rise Residential Buildings

Addenda to Standard 90.2-1993

 

Standard 90.2-2001, Energy Efficient Design of New Low-Rise Residential Buildings

Addenda to Standard 90.2-2001

 

ANSI/ASHRAE Standard 90.2-2004, Energy-Efficient Design of Low-Rise Residential Buildings

This Addenda Package contains Addenda a, b, f, g, h, and i. Addenda are listed as marked in the other Addenda package.

Standard 90.2-2004: Addenda Supplement Package

Standard 90.2-2004: Addenda c, d, e, k

 

Standard 90.2-2007, Energy-Efficient Design of Low-Rise Residential Buildings

Standard 90.2-2007: Addendum b

 

Standard 100-1995, Energy Conservation in Existing Buildings

Addendum to Standard 100

 

Standard 105, Standard Methods of Measuring, Expressing and Comparing Building Energy Performance

Addenda a and b to 105-2007

 

Standard 135-1995, BACnet® -- A Data Communication Protocol for Building Automation and Control Networks

Addenda to Standard 135-1995

 

Standard 135-2001, BACnet® -- A Data Communication Protocol for Building Automation and Control Networks

Addendum to Standard 135-2001

 

Standard 135-2004, BACnet® -- A Data Communication Protocol for Building Automation and Control Networks

Addenda to Standard 135-2004

 

Standard 135-2008, BACnet®—A Data Communication Protocol for Building Automation and Control Networks

Addenda to Standard 135-2008

 

Standard 135-2010, BACnet® -- A Data Communication Protocol for Building Automation and Control Networks

Addendum ad to Standard 135-2010 

Addendum ae to Standard 135-2010

Addendum af to Standard 135-2010 (180 MB)

 

Standard 135.1-2003, Method of Test for Conformance to BACnet

Addenda to Standard 135.1-2003

 

ANSI/ASHRAE Standard 135.1-2007, Method of Test for Conformance to BACnet®

Addendum to Standard 135.1-2007

 

ANSI/ASHRAE Standard 135.1-2009, Method of Test for Conformance to BACnet®

Addenda to Standard 135.1-2009 

 

ANSI/ASHRAE Standard 140-2001, Standard Method of Test for the Evaluation of Building Energy Analysis Computer Programs

Addendum to Standard 140-2001

 

ANSI/ASHRAE Standard 140-2004, Standard Method of Test for the Evaluation of Building Energy Analysis Computer Programs

Standard 140-2004: Addenda a & b (zip)

 

ANSI/ASHRAE Standard 140-2007, Standard Method of Test for the Evaluation of Building Energy Analysis Computer Programs

Standard 140-2007 Addenda Supplement (Addendum a)

Standard 140-2007 Addendum b

Standard 140-2007 Addendum c

 

ANSI/ASHRAE Standard 160-2009, Criteria for Moisture-Control Design Analysis in Buildings

Addendum a to Standard 160-2009

 

ANSI/ASHRAE Standard 161-2007, Air Quality within Commercial Aircraft

Addenda a and b to Standard 161-2007

 

ANSI/ASHRAE Standard 169-2006, Weather Data for Building Design Standards

Addendum to Standard 169-2006

 

ANSI/ASHRAE/ASHE Standard 170-2008 -- Ventilation of Health Care Facilities

Addendum a to Standard 170-2008

Addendum b to Standard 170-2008

Addendum d to Standard 170-2008

Addendum e to Standard 170-2008

Addendum f to Standard 170-2008

Addendum g to Standard 170-2008 

Addendum h to Standard 170-2008

Addendum l to Standard 170-2008

Addendum m to Standard 170-2008

 

ANSI/ASHRAE/ACCA Standard 180 -- Practice for Inspection and Maintenance of Commercial Building HVAC Systems

Addendum a to Std. 180-2008

 

ANSI/ASHRAE/USGBC/IES Standard 189.1-2009 -- Standard for the Design of High-Performance Green Buildings Except Low-Rise Residential Buildings

Addenda a and b to Standard 189.1

Addenda c, d, e, h, j, k, o to Standard 189.1

Addenda f, l to Standard 189.1

Addenda g, i, m, p, q, r, u, v, w to Standard 189.1

 

Addenda Indexes for Standards 34, 62.1, and 90.1

New editions of ASHRAE Standards are published which incorporate any addenda that have been approved for publication since the previous edition. Addenda to previous editions that have not yet been approved for publication are then re-lettered to identify them to the latest edition. This re-lettering of addenda may not occur until such time as the responsible project committee approves the addendum for a subsequent public review or for publication ('TBD'- To Be Determined). In some cases, the addendum letter will remain the same and only the year will change. Click on the applicable standard below to see an 'Addenda Index' that will provide a cross-reference to the previous edition. Copies of these addenda are available only during the public review draft period and these addenda are only available for comment during this same period.

ANSI/ASHRAE Standard 34-2010, Designation and Safety Classification of Refrigerants (August 2, 2011)

ANSI/ASHRAE Standard 62.1-2010, Ventilation for Acceptable Indoor Air Quality (March 12, 2012)

ANSI/ASHRAE/IESNA Standard 90.1-2007, Energy Standard for Buildings Except Low-Rise Residential Buildings (August 4, 2009) (Excel Spreadsheet)

How to Submit a Proposed Change to an ASHRAE Standard or Guideline Under Continuous Maintenance

Go to the ASHRAE Bookstore to Purchase Standards