Oregon Rule Rule 104-030-0010 Applicability (1)This rule applies to all Tsunami Warning sirens, including existing Tsunami Warning sirens. (2)Existing Tsunami Warning sirens must comply within 5 years of the effective date of these rules. (3)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. (4)Voice broadcast may be included in addition to the wail, but not in replacement of the wail.