LC-PCC policy statements for Diachronic works

LC/PCC practice: See the Metadata Guidance documentation: Serial Work and Integrating Work Decisions.

LC/PCC practice: If there is evidence beyond media type or carrier type changes listed below that there is a new Work, then create a new description.

1. If the media type varies or changes within the diachronic work
2. If the carrier type varies or changes within the diachronic work
3. If all parts of the diachronic work are each published in two or more media or carrier types,

then a new description is not required. Add the new media type or carrier type to the bibliographic description using a Manifestation: note on manifestation in the bibliographic record explaining the variation.

LC/PCC practice: For integrating works such as updating loose-leafs, create a new description only when the resource gives clear indicators that the publisher considers it a new Work. See the Metadata Guidance documentation for more detail on what criteria do or do not constitute the justification for a new description.

PCC practice for monographic series: If there is evidence beyond media type or carrier type changes listed below that there is a new Work, then create a new description.

1. If the media type varies or changes within the diachronic work
2. If the carrier type varies or changes within the diachronic work
3. If all parts of the diachronic work are each published in two or more media or carrier types,

then a new description is not required. Add the new media type or carrier type to the bibliographic description using a Manifestation: note on manifestation in the bibliographic record explaining the variation.

LC/PCC practice: When there are different language editions of a serial work, create a new description for each distinct language version of that work regardless of the title of the representative language of the original Work. See Work: Entity boundary.