While 43 percent of the firms surveyed have supplier codes of conduct, only 25 percent perform even minimal monitoring to determine if suppliers are abiding by those codes, and only 10 percent have codes that reference International Labor Organization conventions.

FORBES: U.S. Companies Must Raise The Bar On Supply Chain Conditions

Additional floors often are hastily added without reference to fire and other building codes, monitors say.

WSJ: Before Bangladesh Collapse, Some Clothing Retailers Fled Risk