12 CFR 1272.1 - Definitions.
As used in this part:
Business Day means any calendar day other than a Saturday, Sunday, or legal public holiday listed in 5 U.S.C. 6103.
New business activity (NBA) means any business activity undertaken, transacted, conducted, or engaged in by a Bank that entails material risks not previously managed by the Bank. A Bank's acceptance of a new type of advance collateral does not constitute an NBA.