31 C.F.R. § 500.319 Blocked account.
Title 31 - Money and Finance: Treasury
The term blocked account shall mean an account in which any designated national has an interest, with respect to which account payments, transfers or withdrawals of other dealings may not be made or effected except pursuant to an authorization or license authorizing such action. The term blocked account shall not be deemed to include accounts of unblocked nationals.
Title 31: Money and Finance: Treasury
PART 500—FOREIGN ASSETS CONTROL REGULATIONS
Subpart C—General Definitions
§ 500.319 Blocked account.