23.1541—General.
(2)
Any additional information, instrument markings, and placards required for the safe operation if it has unusual design, operating, or handling characteristics.
(1)
The applicant must select one category upon which the placards and markings are to be based; and
(2)
The placards and marking information for all categories in which the airplane is to be certificated must be furnished in the Airplane Flight Manual.