When it is determined that a published standard or guideline contains an error or errors, an errata sheet may be published at the discretion of the Manager of Standards.

Examples are: typographical errors, misprints, misspellings, grammatical errors, omission of material approved by the ASHRAE Standards Committee, or the erroneous inclusion of material.

More than one errata sheet may be required for a specific document. Please review the entire list related to the applicable document and download all that apply.

• ANSI/ASHRAE Standard 15-2001 Errata (March 16, 2009) (PDF)
• ANSI/ASHRAE Standard 15-2004 Errata (June 11, 2007) (PDF) 
• ANSI/ASHRAE Standard 15-2007 Errata (October 1, 2009) (PDF)  
• ASHRAE Standard 16-1983 (RA 99) Errata (July 24, 2006) (PDF) 
• ANSI/ASHRAE Standard 20-1997 Errata (May 3, 2006) (PDF)  
• ASHRAE Standard 25-1990 Errata (August 5, 1996) (PDF)
• ANSI/ASHRAE Standard 25-2001 (RA 2006) Errata (April 20, 2006) (PDF)
• ANSI/ASHRAE Standard 29-2009 Errata (April 12, 2010) (PDF)
• ANSI/ASHRAE Standard 34-2001 Errata (March 30, 2004) (PDF)
• ANSI/ASHRAE Standard 34-2007 Errata (June 30, 2008) (PDF)
• ANSI/ASHRAE Standard 34-2010 Errata (January 31, 2011) (PDF) 
• ANSI/ASHRAE Standard 37-2005 Errata (July 15, 2005) (PDF)
• ANSI/ASHRAE Standard 41.1-1986 (RA 2001) Errata (February 7, 2002) (PDF)
• ASHRAE Standard 41.3-1989 Errata (January 5, 1998) (PDF)
• ANSI/ASHRAE Standard 41.6-1994 (RA 2006) Errata (September 6, 2011) (PDF) 
• ANSI/ASHRAE 51-1999 (ANSI/AMCA 210-99) Errata (February 15, 2006) (PDF)
• ASHRAE Standard 52.2-1999 Errata (July 11, 2002) (PDF)
• ASHRAE Standard 52.2-2007 Errata (September 15, 2011) (PDF)
• ASHRAE Standard 55-2004 Errata (June 2, 2010) (PDF)
• ASHRAE Standard 55-2010 Errata (March 22, 2011) (PDF)
• ASHRAE Standard 58-1986 (RA 99) Errata (July 24, 2006) (PDF)
• ASHRAE Standard 62-2001 Errata (October 2, 2002) (PDF)
• ANSI/ASHRAE Addendum 62o to ANSI/ASHRAE Standard 62-2001 Errata (7-17- 2003) (PDF)
• ANSI/ASHRAE Standard 62.1-2004 Errata (May 4, 2007) (PDF)
• ANSI/ASHRAE Standard 62.1-2004 User's Manual Errata (June 17, 2008) (PDF)
• 2006 Addenda Supplement to ANSI/ASHRAE Standard 62.1-2004 (April 23, 2007) (PDF)
• ANSI/ASHRAE Standard 62.1-2007 Errata (July 7, 2010) (PDF) 
• ANSI/ASHRAE Standard 62.1-2007 User's Manual Errata (October 9, 2009) (PDF)
• ANSI/ASHRAE Standard 62.1-2010 Errata (July 21, 2011) (PDF) 
•  ANSI/ASHRAE Standard 62.1 -2010 User's Manual Errata (February 28, 2011) (PDF)
• ANSI/ASHRAE Standard 62.2 -2010 Errata (July 21, 2010) (PDF)
• ANSI/ASHRAE Standard 72-2005 Errata (September 10, 2009) (PDF)
• ANSI/ASHRAE Standard 79-2002 (RA 2006) Errata (June 8, 2006) (PDF)
• ANSI/ASHRAE Standard 86-1994 (RA 2006) Errata (November 17, 2009) (PDF)
• ANSI/ASHRAE Standard 90.2-2001 Errata (January 17, 2006) (PDF)
• ANSI/ASHRAE Standard 93-2003 (June 2, 2003) (PDF)
• ANSI/ASHRAE Standard 94.3-2010 Errata (September 15, 2010) (PDF)
• ASHRAE Standard 103-1993 Errata (October 26, 1996) (PDF)
• ASHRAE Standard 111-1988 Errata (January 9, 1997) (PDF)
• ASHRAE Standard 111-2008 Errata (June 17, 2008) (PDF)
• ASHRAE Standard 116-1995 Errata (December 13, 1996) (PDF)
• ANSI/ASHRAE Standard 116-2010 Errata (September 6, 2011) (PDF)
• ANSI/ASHRAE Standard 118.2-1993 Errata (June 12, 2001) (PDF)
• ASHRAE Standard 119-1988 Errata (July 1, 1994) (PDF)
• ANSI/ASHRAE Standard 124-2007 Errata (February 14, 2011) (PDF) 
• ANSI/ASHRAE Standard 125-1992 (RA 2006) Errata (May 1, 2006) (PDF)
• ANSI/ASHRAE Standard 128-2001 Errata (March 23, 2004) (PDF)
• ANSI/ASHRAE Standard 135-1995 Errata (September 7, 1999) (PDF)
• ANSI/ASHRAE Standard 135-2001 Errata (January 24, 2004) (PDF)
• ANSI/ASHRAE Standard 135-2004 Errata (January 24, 2009) (PDF)
• ANSI/ASHRAE Addendum d to ANSI/ASHRAE Standard 135- 2004 Errata (August 9, 2006) (PDF)
• ANSI/ASHRAE Standard 135-2008 Errata (October 25, 2010) (PDF)
• ANSI/ASHRAE Addendum j to ANSI/ASHRAE Standard 135-2008 Errata (February 10, 2010) (PDF)
• ANSI/ASHRAE Addendum q to ANSI/ASHRAE Standard 135- 2008 Errata (May 6, 2009) (PDF)
• ANSI/ASHRAE Addendum w to ANSI/ASHRAE Standard 135- 2008 Errata (June 9, 2010) (PDF)
• ANSI/ASHRAE Standard 135-2010 Errata (January 25, 2012) (PDF)
• ANSI/ASHRAE Standard 135.1-2003 Errata (January 24, 2004) (PDF)
• ANSI/ASHRAE Standard 135.1-2007 Errata (February 10, 2010) (PDF)
• ANSI/ASHRAE Standard 136-1993 Errata (March 20, 2003) (PDF)
• ANSI/ASHRAE Standard 139-1998 Errata (December 5, 2006) (PDF)
• ANSI/ASHRAE Standard 139-2007 Errata (September 17, 2007) (PDF)
• ANSI/ASHRAE Standard 140-2007 Errata (December 4, 2008) (PDF)
• ANSI/ASHRAE Standard 140-2007 Updated DOE-2 Files (Accompanies the
  December 4, 2008 Errata) (ZIP)
• ANSI/ASHRAE Standard 143-2000 Errata (March 14, 2003) (PDF)
• ANSI/ASHRAE Standard 145.2-2011 Errata (August 25, 2011) (PDF)
• ANSI/ASHRAE Standard 147-2002 Errata (December 3, 2003) (PDF)
• ANSI/ASHRAE Standard 152-2004 Errata (July 22, 2010) (PDF)
• ANSI/ASHRAE Standard 160-2009 Errata (July 15, 2009) (PDF)
• ANSI/ASHRAE Standard 161-2007 Errata (November 19, 2009) (PDF)
• ANSI/ASHRAE Standard 169-2006 Errata (April 13, 2009) (PDF)
• ANSI/ASHRAE Standard 170-2008 Errata (April 15, 2011) (PDF) 
• ANSI/ASHRAE/USGBC/IES Standard 189.1-2009 Errata (January 27, 2012) (PDF)
• ANSI/ASHRAE/USGBC/IES Standard 189.1-2011 Errata (January 27, 2012) (PDF) 
• ANSI/ASHRAE Standard 193-2010 Errata (January 31, 2011) (PDF)

More than one errata sheet may be required for a specific document. Please review the entire list related to the applicable document and download all that apply.

• ASHRAE Guideline 0-2005 Errata (September 28, 2011) (PDF) 
• ASHRAE Guideline 1-1996 Errata (July 21, 1998) (PDF)
• ASHRAE Guideline 1.1-2007 Errata (November 7, 2011) (PDF)
• ASHRAE Guideline 12-2000 Errata (December 20, 2010) (PDF)
• ASHRAE Guideline 14-2002 Errata (October 10, 2008) (PDF)
• ASHRAE Guideline 14-2002 Errata – Downloaded PDF version ONLY (October 20, 2008) (PDF)
• ASHRAE Guideline 26-2008 Errata (December 3, 2008) (PDF)
• ASHRAE Guideline 29-2009 Errata (July 17, 2009) (PDF)

More than one errata sheet may be required for a specific document. Please review the entire list related to the applicable document and download all that apply.

• Energy Code for Commercial and High-Rise Residential Buildings Errata (Codification of ASHRAE/IES 90.1-1989) (May 24, 2000) (PDF)  
• Energy Code for Commercial and High-Rise Residential Buildings - October 7, 1997 

More than one errata sheet may be required for a specific document. Please review the entire list related to the applicable document and download all that apply.

• ASHRAE/IES Standard 90.1-2010 User’s Manual Errata (December 20, 2011) (PDF)
• ASHRAE/IESNA Standard 90.1-2007 User's Manual Errata (December 10, 2009) (PDF)
• ASHRAE/IESNA Standard 90.1-2004 User's Manual Errata (December 17, 2008) (PDF)
• ASHRAE/IESNA Standard 90.1-2001 User's Manual Errata (August 20, 2008) (PDF)
• ASHRAE/IESNA Standard 90.1-1999 User's Manual Errata (November 20, 2003) (PDF)
• ASHRAE/IESNA Standard 90.1-1999 User's Manual Errata (December 15, 2001) (PDF)
• Standard 90.1 User's Manual Software EnvStd 4.0 

Errata for ASHRAE/IESNA Standard 90.1-1989 are available here to download. Various errata sheets are available and are applicable depending on when the document was printed. The outside back cover of the standard identifies the printing date and applicable errata sheet(s). The date in parenthesis identifies when the errata sheet was published.

More than one errata sheet may be required for a specific document. Please review the entire list related to the applicable document and download all that apply.

• LTSGTD Version 2.4.2, July 1997, Lighting Compliance Calculation Program and ENVSTD Version 2.4, March 1996, Envelope System Performance Compliance Calculation Program Software (zip file)
• Errata Sheet for Fourth Printing G.G. 3/94 and All Earlier Editions (September 16, 1994) (PDF)
• Errata Sheet for Reprint C.G. 8-92 and All Earlier Editions (October 8, 1992) (PDF)
• Errata Sheet #2 for First and Second Printing 1-90 Reprint 7-90 (May 8, 1991) (PDF)
• Errata Sheet for First and Second Printing 1-90 Reprint 7-90 (November 11, 1990) (PDF)
• Errata Sheet for first printing 1/90 (September 7, 1990) (PDF)

Errata sheets for ASHRAE/IESNA Standard 90.1-1999 are available here to download. Various errata sheets are available and are applilcable depending on the edition (I-P or SI) and when the document was printed. The outside back cover of the standard identifies the printing date and applicable errata sheet(s). The date in parenthesis identifies when the errata sheet was published.

More than one errata sheet may be required for a specific document. Please review the entire list related to the applicable document and download all that apply.

• Errata Sheet for I-P edition Reprint 86240 9/03 and All Earlier Editions, including PC 6/02 and PC 10/02 (December 6, 2004) (PDF)
• Errata Sheet for I-P edition Reprint 86240 PC 2/02 and All Earlier Editions (May 21, 2002) (PDF)
• Errata Sheet for I-P edition First GG 1/00 and Second GG 1/01 Printing (December 15, 2001) (PDF)

Errata sheets for ASHRAE/IESNA Standard 90.1-1999 are available here to download. Various errata sheets are available and are applilcable depending on the edition (I-P or SI) and when the document was printed. The outside back cover of the standard identifies the printing date and applicable errata sheet(s). The date in parenthesis identifies when the errata sheet was published.

More than one errata sheet may be required for a specific document. Please review the entire list related to the applicable document and download all that apply.

• Errata Sheet for SI edition Reprint GG1/01 and All Earlier Editions (March 23, 2007) (PDF)
• Errata Sheet for SI edition First GG 1/00 and Second GG 1/01 Printing (May 21, 2002) (PDF)

Errata for ANSI/ASHRAE/IESNA Standard 90.1-2001 are available here to download. Various errata sheets are available and are applicable depending on the edition (I-P or SI) and when the document was printed. The outside back cover of the standard identifies the printing date and applicable errata sheet(s). Standard 90.1-2001 was first printed November 2001 and had no identifying marking on the outside back cover (blank). The date in parenthesis identifies when the errata sheet was published.

More than one errata sheet may be required for a specific document. Please review the entire list related to the applicable document and download all that apply.

• Errata Sheet – Reprint 86245 PC 12/03 and all Previous Editions (December 6, 2004) (PDF)
• Reprint 86245 PC 2/03 and all Previous Editions (November 10, 2003) (PDF)
• Errata - Reprint 86245 PC 2/03 and all Previous Editions (May 8, 2003) - IP version (PDF)
• Errata Sheet for I-P Edition for First Printing and Reprint 86245 PC 2/02 (November 15, 2002) (PDF)
• Errata Sheet for I-P Edition First Printing and Reprint 86245 PC 2/02 (May 21, 2002) (PDF)
• Errata Sheet for I-P Edition First Printing and Reprint 86245 PC 2/02 (February 15, 2002) (PDF)

Errata for ANSI/ASHRAE/IESNA Standard 90.1-2001 are available here to download. Various errata sheets are available and are applicable depending on the edition (I-P or SI) and when the document was printed. The outside back cover of the standard identifies the printing date and applicable errata sheet(s). Standard 90.1-2001 was first printed November 2001 and had no identifying marking on the outside back cover (blank). The date in parenthesis identifies when the errata sheet was published.

More than one errata sheet may be required for a specific document. Please review the entire list related to the applicable document and download all that apply.

• Errata Sheet – Reprint 86247 PC 2/02 and all Previous Editions (March 23, 2007) (PDF)
• First Printing and Reprint 86247 PC 2/02 (November 10, 2003) (PDF)
• Errata - First Printing and Reprint 86247 PC 2/02 (May 8, 2003) - SI version (PDF)
• Errata Sheet for SI Edition for First Printing and Reprint 86247 PC 2/02 (November 15, 2002) (PDF)
• Errata Sheet for SI Edition First Printing and Reprint 86247 PC 2/02 (May 21, 2002) (PDF)
• Errata Sheet for SI Edition First Printing and Reprint 86247 PC 2/02 (February 15, 2002) (PDF)

Errata for ANSI/ASHRAE/IESNA Standard 90.1-2004 are available here to download. Various errata sheets are available and are applicable depending on the edition (I-P or SI) and when the document was printed. The outside back cover of the standard identifies the printing date and applicable errata sheet(s). The I-P edition of Standard 90.1-2004 was first printed December 2004 and the SI edition in January 2005. The date in parenthesis identifies when the errata sheet was published.

More than one errata sheet may be required for a specific document. Please review the entire list related to the applicable document and download all that apply.

• Errata Sheet for First Printing '86243 PC 12/04', Reprint '86243 PC 3/05', Reprint '86243 1/06', and Reprint '86243 2/09' (August 27, 2009) (PDF)

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

• Errata Sheet for First Printing 'PC 5/06' (August 21, 2008) (PDF)

Errata for ANSI/ASHRAE/IESNA Standard 90.1-2004 are available here to download. Various errata sheets are available and are applicable depending on the edition (I-P or SI) and when the document was printed. The outside back cover of the standard identifies the printing date and applicable errata sheet(s). The I-P edition of Standard 90.1-2004 was first printed December 2004 and the SI edition in January 2005. The date in parenthesis identifies when the errata sheet was published.

More than one errata sheet may be required for a specific document. Please review the entire list related to the applicable document and download all that apply.

• Errata Sheet for First Printing '86248 PC 1/05' (August 27, 2009) (PDF)

Errata for ANSI/ASHRAE/IESNA Standard 90.1-2007 are available here to download. Various errata sheets are available and are applicable depending on the edition (I-P or SI) and when the document was printed. The outside back cover of the standard identifies the printing date and applicable errata sheet(s). The I-P edition of Standard 90.1-2007 was first printed December 2007. The date in parenthesis identifies when the errata sheet was published.

More than one errata sheet may be required for a specific document. Please review the entire list related to the applicable document and download all that apply.

• Errata Sheet for First Printing '86147 PC 12/07', reprint '86147 PC 11/08', reprint '86147 10/09', reprint '86147 05/10', and reprint ‘86147 03/11’. (August 15, 2011) (PDF)

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

• Errata Sheet for First Printing '02/09' (March 16, 2009) (PDF)

• Errata Sheet for Addendum r to 90.1-2007 (August 26, 2010) (PDF)

Errata for ANSI/ASHRAE/IESNA Standard 90.1-2007 are available here to download. Various errata sheets are available and are applicable depending on the edition (I-P or SI) and when the document was printed. The outside back cover of the standard identifies the printing date and applicable errata sheet(s). The SI edition of Standard 90.1-2007 was first printed December 2008. The date in parenthesis identifies when the errata sheet was published.

More than one errata sheet may be required for a specific document. Please review the entire list related to the applicable document and download all that apply.

• Errata Sheet for First Printing '86149 PC 12/08' (July 20, 2010) (PDF)

Errata for ANSI/ASHRAE/IES Standard 90.1-2010 are available here to download. Various errata sheets may be available and are applicable depending on the edition (I-P or SI) and when the document was printed. The outside back cover of the standard identifies the printing date and applicable errata sheet(s). The I-P edition of Standard 90.1-2010 was first printed October 2010. The date in parenthesis identifies when the errata sheet was published.

More than one errata sheet may be required for a specific document. Please review the entire list related to the applicable document and download all that apply.

• Errata Sheet for First Printing '86267 10/10' and Second Printing ‘86267  6/11’. (September 7, 2011) (PDF) 

Errata for ANSI/ASHRAE/IES Standard 90.1-2010 are available here to download. Various errata sheets are available and are applicable depending on the edition (I-P or SI) and when the document was printed. The outside back cover of the standard identifies the printing date and applicable errata sheet(s). The SI edition of Standard 90.1-2010 was first printed April 2011. The date in parenthesis identifies when the errata sheet was published.

More than one errata sheet may be required for a specific document. Please review the entire list related to the applicable document and download all that apply.

Errata Sheet for First Printing '86269  4/11' (August 11, 2011) (PDF)