12 CFR 238.76: Waiting period.

(a) At expiration of period. A proposed director or senior executive officer may begin service at the end of the 30-day period and any extension as provided under § 238.74 unless the Board or Reserve Bank notifies you that it has disapproved the notice before the end of the period.

(b) Prior to expiration of period. A proposed director or senior executive officer may begin service before the end of the 30-day period and any extension as provided under section 238.74 of this section, if the Board or the Reserve Bank notifies in writing the savings and loan holding company or individual submitting the notice of the Board's or Reserve Bank's intention not to disapprove the notice.