We are looking to pursue an HPD for our product(s) but I am unsure if we need the HPD to be 3rd party certified.  I see a couple of my competitors with self-published HPDs and I cannot see in LEED v4 where there is any point contribution variation between self-published and 3rd party certified HPDs.  I am sure that a 3rd party certified HPD would carry more weight with the design community but does it matter with regards to LEED v4?