Today's business climate requires glazing subcontractors to take steps to reduce their agreements to writing, clarify those agreements and limit their exposure. The purpose of this document is to list optional inclusions, exclusions and qualifications for glazing subcontractors to consider adopting. This is not a comprehensive list; it is a tool to assist subcontractors in evaluating their bid proposals.

The Technical Services Division of the National Glass Association (NGA) has produced this Glass Technical Paper solely for informational purposes. This Paper was developed by dedicated member volunteers and subject matter experts. The original version of this document was published in January 2009. This version of the document was updated and published in August 2022.