Global Trade Compliance Atlas

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Part 121

The United States Munitions List

ITAR

Part 121 is the list. Everything ITAR controls is a defense article or defense service designated here. § 120.10 supplies the USML reading conventions (asterisks / SME, (MT), paragraph (x)). § 121.0 is the local Part 121 vocabulary. § 121.1 is the USML itself — Categories I through XXI. Category XXI is a DDTC residual designation, not a classified dump (that is Category XVII) and not a self-classification bucket. §§ 121.2–121.16 are reserved. Classify with the § 120.11 order of review, not by skimming headings.

USML reading conventions — asterisks (SME), the (MT) Missile Technology parenthetical, and paragraph (x) — live in § 120.10, not § 121.0.
Category XXI is a DDTC residual designation. It is not Category XVII (classified not-otherwise-enumerated) and it is not a self-classification bucket.

eCFR (primary) · Part 121

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