Not on monitors, it's not even listed on their website. CC specifically lists monitors though.
BB:
A restocking fee of 15% will be charged on opened notebook computers, projectors, camcorders, digital cameras, radar detectors, GPS/navigation and in-car video systems unless defective or prohibited by law. A restocking fee of 25% will be charged on Special Order Products, including appliances unless defective or prohibited by law.
CC:
Digital cameras, camcorders, desktop PCs, notebook PCs, monitors, printers, scanners, projectors, PDAs, mobile video, GPS and radar detectors must be returned within 14 days of the sale date, and (except where prohibited by law) are subject to a 15% restocking fee if returned opened or in a non-factory sealed box.