Blanket Period(NAFTA Blanket Period – When the NAFTA Certificate of Origin covers multiple shipments of identical goods imported into a NAFTA country for a specified period of up to one year (the NAFTA blanket period), indicate the blanket period "To" and "From" dates. "From" is the date the blanket period takes effect, and "To" is the date the blanket period expires. Ireniha)
