NAWAS 4 : National Warning System, a 24-hour continuous private line telephone system used to convey warnings to U.S. federal, state and local governments.
Government of British Columbia, Ministry of Public Safety and Solicitor General, B.C. Tsunami Notification Process Plan, Appendix F (Glossary of Abbreviations & Tsunami Terminology), Victoria, BC, Canada 2008. http://www.pep.bc.ca/hazard_plans/TsunamiNotificat ionProcessPlan2008.pdf, (ND/ Tsunami Emr-Canad - Amer) {78}