An applicant for a flight navigator certificate must pass a written test on—
The regulations of this chapter that apply to the duties of a flight navigator;
The fundamentals of flight navigation, including flight planning and cruise control;
Practical meteorology, including analysis of weather maps, weather reports, and weather forecasts; and weather sequence abbreviations, symbols, and nomenclature;
The types of air navigation facilities and procedures in general use;
Calibrating and using air navigation instruments;
Navigation by dead reckoning;
Navigation by celestial means;
Navigation by radio aids;
Pilotage and map reading; and
Interpretation of navigation aid identification signals.
A report of the test is mailed to the applicant. A passing grade is evidence, for a period of 24 months after the test, that the applicant has complied with this section.