Viewing Historic Versions of a Code

Previous versions of the code(s) on this site are available for historic reference. Historic versions represent the published state of a code on the listed dates, not necessarily the legislation that was in effect on those dates. Please note that historic versions are provided for convenience only; they may not represent a complete history of a code.

To view a historic version, click the Track button in the main navigation bar, then click “Historic Versions.” Select a date to view, then click View to see that version, or click Compare to view the differences between that version and the current version.

Main navigation bar with the Track menu open and the Historic Versions item highlighted. Versions of the Zoning Code dialog listing several historic versions by date, with the current version highlighted and historic versions including View and Compare links.

Choosing a Version by Enactment

You can navigate between historic versions based on when a certain enactment was codified. From the Legislative History view, click on an enactment. If a historic version corresponding to the enactment is available, a “Document Version” section will appear in the enactment dialog. In that section, click View to see that version, or click Compare to view the differences between that version and the current version.

Choosing a Version by Amended Section

You can navigate between historic versions based on amendments made to a particular section. Click the “History of This Section” button in a section’s heading. In the dialog that appears, some amendment dates will have a Versions section. Click “View as of This [Enactment]” to see the version where the amendment was codified. Click “See What Changed” to compare that version to the preceding version. Click “Compare to Current” to compare that version to the current version.

History of This Section dialog with three visible amendment entries and a pointer on the “Compare to Current” link for one of them.

Navigating a Comparison Between Versions

When comparing two versions of a code, any differences between them on a page are marked up with deleted text in red strikethrough and inserted text in green underline. This is similar to the Track Changes feature of common word processors. This markup is not official and is provided for convenience only.

Part of a code section with several changes marked up using strikethrough and underline.

An extra navigation bar will appear at the bottom of the screen. If the current page has any differences marked up, you can use the back and forward arrows to quickly scroll between them.

Navigation bar at the bottom of a page reading “You are comparing the 7/10/2023 and current versions. The redline markup is not official.” and including forward and back buttons for differences, 7/10/2023 and Current buttons for versions, and All Versions and Clear buttons.

Returning to the Current Version

Whenever you are viewing or comparing historic version(s), an extra navigation bar will appear at the bottom of the screen.

If you are comparing versions, click the Clear button in that navigation bar (see image above) to show only the later of the two versions.

If you are viewing a historic version, click the “Current Version” button to return to the current version of the code.

Navigation bar at the bottom of a page reading “You are viewing the 7/10/2023 version. This is not the current version of this document.” and including Current Version, Compare to Current, and All Versions buttons.