Errata come in many different forms. It can be called transmittals, changes, supplements, updates, revised, amendments, replacements, corrections and errata just to name a few common ones.
Treat them just like regular documents by printing a label or writing their SuDoc number in the top left corner of the document and date/property and shipping list stamp. Check the errata in on Sierra or make sure a Marcive record loads for it. After this has been done, the errata can be placed on the errata shelf. Recall the parent document from the appropriate location and either switch them or insert the errata.
NOTE: If a parent document cannot be found, send the errata document to be shelve with the regular documents. This list is a record of lonely errata, which GPO has told us can be discarded one year after receipt.
Second, on most errata there will be a list of what is being replaced/updated or removed from the parent document, so just follow the sheet. Replace the pages with the corrected ones, double check all pages so you do not toss pages that you are not supposed to. Every once in a while the government does not print a page that tells you what is being replaced, in these cases you must rely on the page numbers on the replacement pages to remove the old pages in the parent document.