Tracings are not necessarily consistent with the heading:

Code b (008/29) indicates that the 4XX/5XX tracing fields in a record have not been evaluated and may not be consistent with the rules used to formulate the 1XX heading in that record.

Example:

008/29 b

008/10 c [code indicating AACR 2]

110 2#$aTucson Metropolitan Chamber of Commerce

410 1#$aTucson, Ariz.$bMetropolitan Chamber of Commerce

510 1#$wa$aTucson, Ariz.$bChamber of Commerce