Retrieves audit office code, county, and policy region data for a given zip code from PA_ZIP_CODE with outer joins to COUNTY and OFFICE_CODE. The NVL(z.audit_office_code, c.office_code) expression falls back to the county office when no specific audit office is configured.
Note: Statements marked with * were inferred from code structure, naming conventions, or contextual evidence where direct confirmation was not available in source artifacts. Statements marked with ** could not be confirmed; treat as unknown until verified.