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mpre     Maintenance: pre-catalog update of pre-existing bibliographic record

r        Receiving: receipt of new monographs

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Note: Post-cataloging transactions require only one transaction data note to record the transaction. For example, the operator may make multiple changes in a maintenance transaction (code m) but need add only one note to the record. 

4. Statistical Codes

(data formerly recorded in 948 $h (Source of acquisition) and $f (Special format)

These codes are the same codes that were used in Voyager, but are selected from a drop-down menu instead.

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 Commonly used macros are documented in Transaction data notes, Statistical Codes, and 948s 

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Batch Processes

Batch and automated processes are recorded in a 948 in the MARC bibliographic record. This is documented in Local Fields Tags Used in Voyager