Rule Rule 104-030-0010


This rule applies to all Tsunami Warning sirens, including existing Tsunami Warning sirens.


Existing Tsunami Warning sirens must comply within 5 years of the effective date of these rules.


The siren signal is the “wail,” a siren tone that oscillates up and down repeatedly from high to low over a period of three minutes.


Voice broadcast may be included in addition to the wail, but not in replacement of the wail.
Last accessed
Aug. 9, 2020