prior written notice

基本解释

Either party may change its address, email address or facsimile number for notice through thirty (30) days′ prior written notice to the other party.
任何一方均可通过向另一方发出三十（30）日事先书面通知而变更其地址、电邮地址或传真号码。
Each party has to furnish the other party at least 60 days with prior written notice for termination or change in this Agreement, otherwise this Agreement shall be deemed to extend automatically.
任何一方终止合同或变更合同内容，均需提前60天书面通知对方，否则，本合同被视为自动延续。
Seller may increase any price hereunder on the first day of any calendar quarter-yearly period by delivering or mailing written notice to Buyer at least fifteen (15) days prior to such day.
卖方提价可在每个季度的第一天进行，但至少应提前十五（15）天以书面提交或邮寄通知买方。

Notwithstanding the legitimate reasons for opening or maintaining such accounts, all that FINRA asks is for prior written notice (or prompt notice for pre-existing accounts).
FORBES: Outside Brokerage Accounts On FINRA's Radar
From June 2010 through September 2010, the AWC alleges that Kai solicited four EDJ customers to invest in GPH without giving the firm prior written notice of the proposed transactions and his proposed role.
FORBES: Stockbroker's Outside Business Activity Becomes FINRA Private Securities Transaction