FDA has not approved high-erucic-acid rapeseed oil (HEAR oil) as generally recognized as safe (GRAS) for human consumption due to historical concerns about cardiac effects at high dietary levels. Importers must clearly declare the industrial end-use on entry documentation and commercial invoices. Shipments that could be diverted to food use may be subject to FDA detention; maintaining a clear chain-of-custody to industrial buyers is essential.

Both lines fall under the high-erucic-acid or 'other' rapeseed/colza/mustard subheading (151491), but the 10-digit split separates mustard seed oil — derived from Brassica juncea or Brassica nigra — from rapeseed and colza oils derived from Brassica napus or Brassica rapa. The botanical source and fatty-acid profile documented by the supplier's certificate of analysis are the primary bases for selecting the correct line. India is a significant source of mustard seed oil specifically.