The Digital NOTAM Subscription and Request Service provides two interfaces: (1) a REST-based WFS interface supporting spatial and temporal queries compliant with WFS and WFS-TE standards, returning AIXM 5.1.1 encoded data; and (2) a subscription-distribution interface combining RESTful subscription management and AMQP 1.0-based message distribution. Consumers create subscriptions via REST, receive AMQP queue details in response. Upon data changes, messages are generated and pushed to AMQP queues according to subscription filters. Consumers retrieve and acknowledge messages from their queues. The Data Consumer sends requests compliant with the OGC Web Feature Service (WFS) and WFS Temporality Extension (WFS-TE) standards to the REST-based WFS Service. The service processes spatial and temporal queries and responds with aeronautical information encoded in AIXM 5.1.1 format. Clients are expected to construct requests using supported operators as defined in the applicable standards.