Several problem areas exist for lumber manufacturers such as, application of antisapstain chemicals, hemlock brownstain and disposal of PRF resin used by wood lamination plants. The ability to monitor the application of antisapstain chemicals can prevent monetary claims against the industry and improve our credibility as a supplier. The mechanism by which hemlock brownstain occurs must be fully understood in order to control it. Lumber lamination plants must have a way of monitoring their waste PRF resin in order to meet provincial environmental regulations.