In 1997, CERTEK designed and developed the concept of modular containment laboratories. Institutions working with pathogenic organisms are required to have these type of laboratories by the National Institutes of Health, and the Centers for Disease Control and Prevention. The requirements are listed in their publication "Biosafety in Microbiological and Biomedical Laboratories". Laboratories may also be constructed to the Canadian or World Health Organizations standards. The first laboratory was delivered in 1997 and placed on top of a five story building. CERTEK has built laboratories for use by major universities, research agencies, diagnostic laboratories, etc. CERTEK laboratories are now being shipped overseas for use with the avian flu virus.