The At a Glance about SAS No. 145, Understanding the Entity and Its Environment and Assessing the Risks of Material Misstatement, summarizes how SAS No. 145 enhances certain requirements and guidance including, for example:
The requirements and guidance related to obtaining an understanding of the entity’s system of internal control and assessing control risk
The At a Glance also summarizes how SAS No. 145 also includes revised and new requirements including, for example:
A revised definition of significant risk