AtHoc Notification System

CFAY EMERGENCY MANAGEMENT ATHOC NOTIFICATION SYSTEM

The AtHoc Mass Warning and Notification System is used by Navy installation commands to provide simultaneous emergency notifications to ONE-Net computer desktops; work and personnel email addresses; as well as work, mobile, and home phones. Registering allows the Fleet Activities Yokosuka Mass Warning and Notification System permission to send notices to requesting personnel and authorized dependents.

Instructions

Fill out the AtHoc Personnel Registration Form (Updated June 13, 2025). Please note, sponsors must fill out the registration for dependents.
Email the completed form(s) to cfay.em.dept@us.navy.mil with the subject line of AtHoc Personnel Registration. CFAY Emergency Management personnel may provide additional instructions in reply.
For more information or personnel with additional questions, please contact cfay.em.dept@us.navy.mil.

Supporting Documents

AtHoc Updating Profile
AtHoc Mobile App Registration
AtHoc Personnel Registration Form (Updated June 13, 2025)
コンピュータ･デスクトップ･通知システム（CDNS) セルフサービス･ユーザー･ガイド

City-operated Emergency Notification Systems

Local governments provide their own emergency notification systems and SOFA personnel are welcome to register. Please note, not all city and town emergency management offices can provide notifications in English. It may be necessary to use a translation app to assist. Personnel unsure which city their address may fall under may contact the CFAY Navy Housing Office at Yokosuka_Housing@us.navy.mil for clarification.

Also see:

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