REMOVE EMISSIONS BEFORE FLIGHT

Aircraft parts, namely, power plants which are comprised of an aircraft engine, an aircraft propeller and components thereof

Hydrogen fuel cell electric vehicles; aircraft; aircraft powered with a hydrogen propulsion electrochemical reactor; aircraft, namely, electrically powered aircraft; hydrogen fuel cell powered aircraft; structural parts for hydrogen fuel cell powered aircraft; aircraft structural parts, namely, hydrogen fuel storage cells for aircraft; aircraft structural parts, namely, a hydrogen propulsion electrochemical reactor for aircraft

Precious metals and their alloys and goods in precious metals or coated therewith, including but not limited to keychains and metal pins

Headgear and clothing