What are the acceptable forms of documents stating the VOC content in a material? I have the following three forms:

1. Technical data-sheet from the supplier stating the VOC content..
2. Test report for the VOC content.
3. Confirmation letter from the supplier that his product contain 0% of VOC or a specific value.

In the three types of documents, the test method (U.S. EPA Test Method 24) is not mentioned.

Are these documents acceptable by the USGBC?

Thanks