A service window is not covered by the feed's validity period.
[1] service_window_outside_feed_period rule reference
| Code | service_window_outside_feed_period |
|---|---|
| Standard | GTFS |
| Source | MobilityData canonical GTFS Schedule validator |
| Severity | INFO |
| Category | currency |
| Maturity | draft |
| Tags | mobilitydata, gtfs, currency |
| Retrieved | 2026-06-12 |
| Reference | https://gtfs-validator.mobilitydata.org/rules.html#service_window_outside_feed_period |
