ASTM Revises GA Aircraft Systems, Equipment Standard
ASTM International's revision is intended to "level the playing field" for OEMs.

The general aviation aircraft committee of ASTM International has revised the standard for systems and equipment aspects of airworthiness and aircraft design in Level 1, 2, 3, and 4 Normal category airplanes. The levels refer to the number of passenger seats in an aircraft—19 or less—and maximum certificated takeoff weight of 19,000 pounds.