The route decision should point directly to Annex IV Part A technical documentation for machinery and related products. The record should make clear which essential health and safety requirements apply, which protective measures meet them, which standards or common specifications were used, and which tests, inspections, calculations, or examinations verify conformity.
When software, sensor-fed operation, remote driving, autonomy, or safety-related programming is relevant, include the documentation Annex IV calls out for source code or programming logic, and for the system characteristics, capabilities, limitations, data, development, testing, and validation processes.