- A823 between A822 and A824, Perth & Kinross (Grid ref NN902132)
- A823 between A824 and A9, Perth & Kinross (Grid ref NN921110)
- A823 between A9 and Perth & Kinross boundary, Perth & Kinross (Grid ref NN948053)
- A823 between A91 and A91, Clackmannanshire (Grid ref NO005015)
- A823 between Clackmannanshire boundary and A91, Clackmannanshire (Grid ref NO005020)
- A823 between A91 and Clackmannanshire boundary, Clackmannanshire (Grid ref NO014000)
- A823 between Perth & Kinross boundary and A977, Perth & Kinross (Grid ref NT017994)
- A823 between A977 and A977, Perth & Kinross (Grid ref NT019984)
- A823 between A977 and Perth & Kinross boundary, Perth & Kinross (Grid ref NT020978)
- A823 between A977 and Leadside Crescent, Dunfermline, Fife (Grid ref NT088900)
- A823 between Leadside Crescent and B9155 Broomhead Drive, Fife (Grid ref NT090885)
- A823 between B9155 Broomhead Drive and A907, Fife (Grid ref NT091877)
- A823 between B9156 Nethertown Broad Street and A907, Fife (Grid ref NT097873)
- A823 between B9156 Nethertown Broad Street and A823(M), Fife (Grid ref NT100864)
- A823 between M90 and J2, Fife (Grid ref NT118846)