Customs rulings play a crucial role in trade compliance. Binding rulings have mandatory effect and ensure uniformity across ports, while advisory rulings offer non-binding guidance. Federal contractors must use domestic components due to government procurement policies. Vessel repairs face significant duties, especially under specific regulations. The Jones Act requires US-flagged vessels for domestic trade, increasing compliance costs. Obtaining binding rulings involves customs verification for accurate classification and marketing.

#Code of Federal Regulations (CFR) Title 19
#Part 177