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Specifications for Construction Contracting

National Engineering Handbook (NEH)
Part 642

Selected files are available in Adobe Acrobat PDF (Portable Document Format). A free Adobe Acrobat Reader is available from adobe.com to view or print these files.  Adobe Acrobat is a trademark of Adobe Systems Incorporated.

National Engineering Handbook Part 642 is a complete replacement for National Engineering Handbook Section 20. 

Please read the  transmittal letter for Part 642 (amendment 1)  for additional information.

Table of Contents

Chapter 1 - General Contract Specification Procedures

Chapter 2 - National Standard Construction Specifications

Chapter 3 - National Standard Material Specifications

Download NEH Part 642 in its entirety.

 
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