Download the Enbridge Bulletin - Here (http://www.hvactechgroup.com/article.php/20150501132753661)
Thanks, I didn't think they came to inspect completed b tags before.
This is simply a way to avoid a rejection on a new service install. If the infraction is non immediate, then the inspector will pass the inspection and issue a B tag. The contractor can make the repair and clear the warning tag. Enbridge won't need to come back to re-inspect or to clear the warning tag.