Addendums result in prospective bidders having to reevaluate their bid packet; therefore, any large amendments must be made as early as possible.

Very minor changes to the contract (minor quantity errors, misspelled words, renumbered sheets, etc.), which are not anticipated to impact bid prices, must not be made, unless combined with other essential changes.

Filenames for amended plan sheets need to retain the same filename and format as the original file they are replacing; the amended files replace the originals. Filename errors can cause additional problems, such as unintentional overwritten plan documents or duplicate titled sheets (revised and its original).

All revised PDF plan sheets must have the revision/addendum number and the addendum release date on the lower right corner. This information ensures the contractor is using the correct construction information.

When subsequent changes are made to the same PDF plan sheet, retain previous revision numbers on the drawing, but remove any clouds around the previous changes. All revisions must be identified on the drawing as well as the list of revision dates.

An addendum must be issued only when plans or proposal errors may affect the competitiveness of the letting, there are significant quantity errors, or a contract material issue.