(a) Minimum net stable funding ratio requirement. A national bank or Federal savings association must maintain a net stable funding ratio that is equal to or greater than 1.0 on an ongoing basis in accordance with this subpart.

(b) Calculation of the net stable funding ratio. For purposes of this part, a national bank's or Federal savings association's net stable funding ratio equals:

(1) The national bank's or Federal savings association's available stable funding (ASF) amount, calculated pursuant to § 50.103, as of the calculation date; divided by

(2) The national bank's or Federal savings association's required stable funding (RSF) amount, calculated pursuant to § 50.105, as of the calculation date.