Which statement is true regarding the use of an instrument departure procedure chart?

The use of an instrument departure procedure chart is crucial for ensuring safe and efficient departures from an airport, especially under instrument flight rules (IFR). The statement that it must possess either the textual or the graphic form of the approved procedure is correct because pilots need to have access to the necessary information for proper navigation and adherence to air traffic control instructions.

Instrument departure procedures can be provided in both textual and graphic formats, allowing pilots to select the form that best matches their preference and operational needs. This flexibility is important, as different pilots may have varying familiarity with either format. The critical aspect is that pilots must have access to the approved procedures, regardless of whether they choose a graphical or textual representation.

In contrast, the other options do not adequately address the requirements for using instrument departure procedures. For instance, while digital formats are widely used and may offer advantages, it is not a requirement that the procedure be in digital form. Additionally, discarding the chart when not in use would be imprudent, as pilots may need to refer back to the approved procedures even after a flight has commenced. Lastly, stating that only graphical forms are accepted overlooks the validity of textual forms, which are also authorized and widely utilized in aviation.