The purpose of CAN-ASC-3.3 is to develop a standard that goes above mandatory minimum technical specifications and produces equity-based technical requirements.There are common areas where people with disabilities may experience barriers related to missing-person alert systems and emergency response. These include, but are not limited to:A lack of accessible and consistent public alert mechanisms to help locate people with autism, non-speaking individuals, and people with intellectual or developmental disabilities and dementia who go missing without evidence of abduction;Delays in initiating public notifications and search activities due to alert criteria that are primarily designed for suspected abductions;A lack of nationally consistent criteria and procedures across jurisdictions for identifying and responding to high-risk missing people with disabilities;Insufficient coordination between law enforcement, emergency management organizations, support organizations, caregivers, and families during missing-person incidents;A lack of accessible communication and public awareness regarding the unique risks faced by people with disabilities who may wander, elope, become disoriented, or be unable to seek assistance; andInconsistent use of location-finding technologies and other assistive tools that may support rapid search and recovery efforts.To address these barriers, this standard will establish technical requirements for a vulnerable missing persons alert. These requirements include, but are not limited to:Eligibility criteria and risk-based activation thresholds for missing people with disabilities;Standardized assessment protocols to determine when an alert should be issued;Geo-targeted alert distribution methods based on the missing person's likely-location, mobility, and risk profile;Accessible alert content and formats that can be understood by a broad range of users;Information-sharing protocols between law enforcement, emergency management organizations, caregivers, and service providers;The use of voluntary location-finding technologies, registries, and other assistive technologies, while respecting privacy and consent requirements;Procedures for alert escalation, renewal, modification, and cancellation;Data collection and performance measurement requirements to evaluate outcomes and continuous improvement;Criteria for implementation and operation across jurisdictions;Criteria on privacy, dignity, autonomy, and informed consent to support the rights of people with disabilities while enabling timely emergency response; andReporting, monitoring, and evaluation of alerts issued.In addition, the standard will seek alignment with relevant emergency management, public alerting, and privacy rights guidance to ensure a consistent and coordinated national approach to protecting missing people with disabilities.This standard will align with all relevant Accessibility Standards Canada standards.