Tariff subheading definition
Tariff subheading. , or “subheading”, means a subheading appearing in the Standard Tariff and identified by 6 digits or not identified by any number.
heading means the direction in which the longitudinal axis of an aircraft is pointed, usually expressed in degrees from North (true, magnetic, compass or grid);
Nominal tomographic section thickness means the full width at half-maximum of the sensitivity profile taken at the center of the cross-sectional volume over which x-ray transmission data are collected.