To borrow from the original Fab Four, money won't buy you tile certification. Rather it's your experience and skill as a tile setter that allows you to validate your tile installation skills as a Certified Tile Installer.
That's according to Mike McLawhorn CTI #188 and Territory Sales Manager for HB Fuller.
Mike is next in the CTEF Blog series about Qualified Labor based on an article in TileLetter.com titled Mike McLawhorn: CTI credentials are confirmation of tile setter knowledge that money can’t buy.