I am having a discussion with my team about the standard for changing of the date on the Date creation block of a title block when a revision has been made. Does anyone know what and where it would be in writing? I believe the Date creation block that is filled in when the drawing is created never changes. Any changes to the drawing will be reflected in the Rev block, including the rviewer and approver. Also, what constitutes the first letter "A" revision, the initial design or the first revision to the initial design? Please advise, thank you!