Group 2 - Wall and Ceiling Finishes testing standards

We manufacture rigid sheet wall covering. When we launched a new product in 2009, it was tested per CDHS Standard Practice for the Testing of Volatile Organic Emissions from Various Sources Using Small-Scale Environmental Chambers (CA/DHS/EHLB/R-174, 2004). In LEED for Heathcare 2009 and LEED v4, products are to comply with version standard 1.1 (2010) The agency that tested our product reviewed the two versions of the standard. They have offered to document that the revisions made in v 1.1 do not apply to our product. Can a letter from them, along with, the certificate of compliance to the 2004 standard be accepted as showing compliance to the credit criteria?