Here is a list of resources to help you plan for an emergency. Remember to include your team in the process. An option for medium to large organisations is to establish a team to lead Emergency Planning from across the organisation. Include your Health & Safety leaders. The team can be responsible for practice scenarios, keeping the plan up to date and sharing information across the organisation. Make sure that they know how to use Beep and they can incorporate Beep into their emergency plans.
Get your work ready for an emergency (Civil Defence) - https://getready.govt.nz/prepared/work/
Shut Happens (Resilient Organisations) - https://www.resorgs.org.nz/wp-content/uploads/2017/07/Resilient_Organisations_Shut_Happens_online_version.pdf
Striving Through (Resilient Organisations) - https://www.resorgs.org.nz/wp-content/uploads/2017/07/Resilient_Organisations_Striving_Through_online_version.pdf
Planning for different hazards
These pages are not workplace-specific but do provide a basis from which to plan your emergency procedures.
Earthquakes - https://getready.govt.nz/emergency/earthquakes/
Landslides - https://getready.govt.nz/emergency/landslides/
Other hazards - https://getready.govt.nz/emergency/other-hazards/