Last summer, the Office of the Comptroller of the Currency issued an advisory concerning warehouse lines of credit that was all but ignored by most players in the market. That is, until now. In a research note, Keefe, Bruyette & Woods said the “new” OCC rules could force Texas Capi-tal Bank to increase the risk weighting of its warehouse lines to 100 percent, from its current designa-tion of 37 percent.