The Terminal Area Chart (TAC) chart may have notes to view the back of the chart for further information.
Detroit TAC chart with a notation to look at the back for details
To view the back of a TAC chart or view the full VFR Flyway Planning Charts (FLY charts), go to the DOCUMENTS > FAA > FLY CHARTS. Scroll to find the chart you are looking for. Tap on the chart name to download it.
Back of the Detroit TAC chart is found under DOCUMENTS > FAA > FLY CHARTS