Although there are no regulations in place for the design and construction of blast-resistant buildings (BRBs), many of us are working toward that goal. In the meantime, here is a list of questions everyone should ask before buying a BRB. 1. Was the BRB designed and tested by a blast expert? The science of blast-resistant building (BRB) design is still considered new, and only a small group of experts have tested their designs. Make sure your BRB design has been taken off the drawing board and successfully blast-tested under the supervision of a well credentialed engineer.