Appendix C deck for functions other than flightcrew alerting must be limited and must not adversely affect flightcrew alerting.
Instrument lights must make each instrument and control easily readable and discernable.
23.1381(a) Instrument lights must make each instrument, switch, and other device, easily readable.
25.1381(a)(1), 27.1381(a),
29.1381(a) Instrument lights must be installed so that no objectionable reflections are visible to the pilot.
25.1381(a)(2)(ii), 27.1381(b)2,
29.1381(b)2 The minimum flightcrew must be able to access and easily operate controls required for safe operation.
23.1523, 25.1523, 27.1523,
29.1523 A cockpit control must be plainly marked as to its function and method of operation.
23.1555(a), 25.1555(a),
27.1555(a), 29.1555(a) Table C-2. Additional Cited Regulations General Topic 14 CFR Regulations Cockpit control knob shape. 25.781, 23.781 Instructions for continued airworthiness. 23. 1529, 25.1529. 27.1529,
29.1529 C-2