Postal Resources
CASS Lookup
Address Line 1 is required and may be entered like this:
PO BOX 207
9046 US HIGHWAY 31
9046 US HIGHWAY 31 STE 7
Address Line 2 can be used for the secondary indicator if omitted from line 1:
STE 7
The City, State, Zip field is required and can be used as follows:
BERRIEN SPRINGS MI 49103
BERRIEN SPRINGS MI
49103
Current AMS: Version: 4.00.10.O; Database Date: 09/01/2024.
For additional resources on correcting CASS errors, review this PDF: CASS Errors – How to resolve them
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