Support : Publications : Chronolog Archives : July/August 2001

Correction Records Now Appearing in PIERS Databases

Beginning in April 2001, PIERS began sending correction records for:

File 571, PIERS Exports (U.S. Ports),

File 573, PIERS Imports (U.S. Ports),

File 572, PIERS Exports (Mexico), and

File 574, PIERS Imports (Mexico).

Correction records are records that have been previously delivered to these databases, but have been replaced with new records containing some change to the data, such as weights, amounts, destinations, origination points, or units of measure. Some records contain only the correction of typographical errors. The change updates are indicated by a C following the update date. For example, the first of these updates appeared in April, and are coded UD=200104C.

To avoid including records in your searches from corrected updates, simply enter your strategy and NOT out the change update, e.g., S PN,PS=FIREWORKS? NOT UD=200104C. Correction updates will be added to the PIERS files every month.

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