May 1999 -- NASA adopts ISO 10303 for data exchange
NASA-STD-2817 now includes the requirement for CAE/CAD/CAM systems used by NASA to have interchange tools that support STEP
Preferred standards include APs 203, 209, 210, 225, and 227 for exchanging data among PDM, mechanical and electronic CAD/CAM, civil and facilities CAD, and CAE/analysis systems
Tools that enable data interchange, compliant with these standards, must be available to all CAE/CAD/CAM users at each NASA Center