Basically, the recommendation of the Home Front Command is for everyone to participate in the drill. For those unable to do so, it is recommended to carry out partial drilling. Partial drilling is applicable to institutions / workplaces (for example, a test would not be cancelled as a result of the drill).
If partial drilling is impossible, you should at least do the minimum: when the alarm sounds, specify to your employees / students / public that in a real situation they would be required to go into their protected space within the available time frame, and wait for 10 minutes.
Under two circumstances one can avoid drilling:
1. When the drill exposes people to unnecessary danger (for example, if you are driving a car, do not stop when the alarm sounds, but continue with the ride).
2. In any event where stopping an activity as a result of the alarm involves major disruption to the usual routines.