missing_feed_info_date

One of feed_start_date or feed_end_date is specified, but not both.

WARNINGGTFSintegritydraftMobilityData canonical GTFS Schedule validator

Related

• Source: MobilityData canonical GTFS Schedule validator

Citations

[1] missing_feed_info_date rule reference

Rule metadata

Code	missing_feed_info_date
Standard	GTFS
Source	MobilityData canonical GTFS Schedule validator
Severity	WARNING
Category	integrity
Maturity	draft
Tags	mobilitydata, gtfs, integrity
Retrieved	2026-06-12
Reference	https://gtfs-validator.mobilitydata.org/rules.html#missing_feed_info_date