The organization of has been a means of coordination among representatives from certification authorities in North and South America, Europe, and Asia, in particular, the FAA and EASA.
The CAST organization first met November 1990 to develop consistent international certification authority input to the drafting of the next revision, DO-178B, which was released in 1992.
In 2003, the organization expanded its scope to address the published certification guidance for airborne electronic hardware provided in the RTCA publication DO-254 released in 2000.
A goal was to detect issues in time to for the applicant to make adjustments to maximize successful accomplishment of all certification objectives.
[5] Even though these legacy items have been removed, not all information they contain has been included in replacement publications, so, they remain a source of insight into present guidance.