ARIA-Lex: Early Action Message library

Problem:
ARIA-Lex is a starting point for structured dialogue with sector specialists, duty-holders and authorities, and domain experts. It is not intended to replace, presuppose, or predetermine what actions are appropriate in any given context, jurisdiction, or operational setting. All 1671 pre-loaded messages carry provisional validation status to be reviewed, adapted, and validated by appropriate authorities before use in live alerting systems.

ARIA-Lex organises messages into 17 action themes across two registers. Each sector–hazard–severity combination draws from a subset of these themes, but not every theme applies to every situation.

Register A – Operational Actions: Protective, logistical, and public-facing messages. Guidance that directly enables protective action by individuals, communities, or operational responders.

Register B – Systemic / Institutional Actions: Coordination, infrastructure, policy, and institutional messages. Guidance for authorities and institutions managing systems rather than direct public protection.

All source frameworks cited across this library:

ETC Cluster
FAO EAP
FAO EWEA
Global Protection Cluster
IASC MHPSS
ICAO Annex 2
IFRC DREF
IFRC EAP
IFRC PAPE
IFRC PER
IFRC RCCE
WMO IBFWS
IFRC WhatNow
INEE
ITU EW4All
ITU NETP
ITU Tampere
OCHA EAP
UNDRR HiPs
UNDRR MHEWS
UNDRR SFDRR
UNICEF CP
UNICEF DRR
WFP AA
WHO ERF
WHO HEPR
WHO IHR

Solution:
A sector-specific, severity-tiered early action messages for national authorities, UN agencies, and EWS implementers. Grounded in IFRC, WHO, WMO, FAO/WFP, UNICEF, OCHA, ITU, and UNDRR frameworks.