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Standards Interpretations

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A request for interpretation may be either 'official' or 'unofficial' (personal). An official interpretation is defined as a written explanation of the meaning of a specific provision of a standard or guideline, as determined by an existing cognizant Project Committee (PC) or an Interpretation Committee (IC), in response to a written request. An unofficial or personal interpretation is a written explanation of the meaning of a specific provision of a standard or guideline, as determined by the Manager of Technical Services, the past or current Chair of the cognizant PC, or the Manager of Standards (MOS), in response to a written request.

More Information on Requesting an Interpretation

Standard 15-1989

Interpretations to Standard 15-1989


Standard 15-1992

Interpretations to Standard 15-1992


Standard 15-1994

Interpretations to Standard 15-1994

Emergency Interim Standards Action, Standard 15-1994


Standard 15-2001

Interpretations to Standard 15-2001


Standard 15-2004

Interpretation to Standard 15-2004


Standard 15-2007

Interpretations to Standard 15-2007


Standard 15-2010

Interpretation for Standard 15-2010


Standard 15-2013

Interpretation to Standard 15-2013


Standard 15-2016

Interpretation to Standard 15-2016


Standard 15-2019

Interpretations to Standard 15-2019


Standard 32.1-2004

Interpretation to Standard 32.1-2004


Standard 32.1-2010

Interpretation to Standard 32.1-2010


Standard 51-1999

Interpretations to Standard 51-1999


Standard 52.1-1992

Interpretations for Standard 52.1-1992


Standard 52.2-1999

Standard Interpretations for Standard 52.2-1999


Standard 52.2-2007

Interpretations for Standard 52.2-2007


Standard 52.2-2012

Interpretations for Standard 52.2-2012


Standard 55-1992

Interpretation for Standard 55-1981 and 55-1992


Standard 55-2004

Interpretations for Standard 55-2004


Standard 55-2010

Interpretations for Standard 55-2010


Standard 55-2013

Interpretation for Standard 55-2013


Standard 62-1989

Interpretations for Standard 62-1989


Standard 62-1999

Interpretations for Standard 62-1999


Standard 62-2001

Interpretations for Standard 62-2001


Standard 62.1-2004

Interpretations for Standard 62.1-2004


Standard 62.1-2007

Intrepretations for Standard 62.1-2007


Standard 62.1-2010

Interpretations for Standard 62.1-2010


Standard 62.1-2013

Interpretations for Standard 62.1-2013


Standard 62.1-2016

Interpretations for Standard 62.1-2016


Standard 62.2-2003

Interpretations for Standard 62.2-2003


Standard 62.2-2004

Interpretations for Standard 62.2-2004


Standard 62.2-2007

Interpretations for Standard 62.2-2007


Standard 62.2-2010

Interpretations for Standard 62.2-2010


Standard 62.2-2013

Interpretation for Standard 62.2-2013


Standard 62.2-2016

Interpretations for Standard 62.2-2016


Standard 62.2-2019

Interpretations for Standard 62.2-2019


Standard 72-2005

Interpretations for Standard 72-2005


Standard 90.1-1989

Interpretations for Standard 90.1-1989


Standard 90.1-1999

Interpretations for Standard 90.1-1999


Standard 90.1-2001

Interpretations for Standard 90.1-2001


Standard 90.1-2004

Interpretation for Standard 90.1-2004


Standard 90.1-2007

Interpretation for Standard 90.1-2007


Standard 90.1-2010

Interpretation for Standard 90.1-2010


Standard 90.1-2013

Interpretation for Standard 90.1-2013


Standard 90.1-2016

Interpretation for Standard 90.1-2016


Standard 90.1-2019

Interpretation for Standard 90.1-2019


Standard 90.4-2016

Interpretations for Standard 90.4-2016


Standard 110-1995

Interpretations for Standard 110-1995


Standard 135-2001

Interpretations for Standard 135-2001


Standard 135-2004

Interpretations for Standard 135-2004


Standard 135-2008

Interpretations for Standard 135-2008


Standard 135-2010

Interpretations for Standard 135-2010


Standard 135-2012

Interpretations for Standard 135-2012


Standard 135-2016

Interpretations for Standard 135-2016


Standard 135.1-2013

Interpretations for Standard 135-2016


Standard 145.2-2011

Interpretation for Standard 145.2-2011


Standard 147-2013

Interpretations for Standard 147-2013


Standard 170-2008

Interpretations for Standard 170-2008


Standard 170-2013

Interpretation for Standard 170-2013


Standard 170-2017

Interpretation for Standard 170-2017


Standard 180-2008

Interpretations for Standard 180-2008


Standard 185.1-2015

Interpretations for Standard 185.1-2015


Standard 188-2015

Interpretations for Standard 188-2015


Standard 188-2018

Interpretations for Standard 188-2018


Standard 189.1-2009

Interpretations for Standard 189.1-2009


Standard 189.1-2011

Interpretations for Standard 189.1-2011


Standard 189.1-2017

Interpretation for Standard 189.1-2017


Standard 190-2013

Interpretation for Standard 190-2013


Standard 214-2017

Interpretation to Standard 214-2017

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