diff --git a/src/main/java/org/mtransit/parser/DefaultAgencyTools.java b/src/main/java/org/mtransit/parser/DefaultAgencyTools.java
index 8cc6af1..0c0640e 100644
--- a/src/main/java/org/mtransit/parser/DefaultAgencyTools.java
+++ b/src/main/java/org/mtransit/parser/DefaultAgencyTools.java
@@ -893,7 +893,7 @@ public boolean directionFinderEnabled(long routeId, @NotNull GRoute gRoute) {
 
 	@Override
 	public boolean allowNonDescriptiveHeadSigns(long routeId) {
-		return false; // this is bad, some transit agency data can NOT be fixed :(
+		return Configs.getRouteConfig().allowNonDescriptiveHeadSigns(getTodayDateInt(), routeId); // this is bad, some transit agency data can NOT be fixed :(
 	}
 
 	@Override
diff --git a/src/main/java/org/mtransit/parser/config/gtfs/data/RouteConfig.kt b/src/main/java/org/mtransit/parser/config/gtfs/data/RouteConfig.kt
index c7bdd72..88fafed 100644
--- a/src/main/java/org/mtransit/parser/config/gtfs/data/RouteConfig.kt
+++ b/src/main/java/org/mtransit/parser/config/gtfs/data/RouteConfig.kt
@@ -82,6 +82,10 @@ data class RouteConfig(
     val directionSplitterEnabled: Boolean = false, // OPT-IN feature
     @SerialName("direction_finder_enabled")
     val directionFinderEnabled: Boolean = false, // OPT-IN feature
+    @SerialName("allow_non_descriptive_head_signs")
+    val allowNonDescriptiveHeadSigns: Map<Long, Boolean> = emptyMap(), // OPT-IN feature
+    @SerialName("allow_non_descriptive_head_signs_until")
+    val allowNonDescriptiveHeadSignsUntil: Map<Long, String> = emptyMap(), // OPT-IN feature
     // STOP
     @SerialName("stop_id_cleanup_regex")
     val stopIdCleanupRegex: String? = null, // optional
@@ -339,5 +343,11 @@ data class RouteConfig(
     }
 
     fun allowIgnoreInvalidStopTimes(todayDate: Int) =
-        allowInvalidStopTimes || (allowInvalidStopTimesUntil?.toIntOrNull()?.let { todayDate <= it } ?: false)
+        allowInvalidStopTimes || isAllowedUntil(allowInvalidStopTimesUntil, todayDate)
+
+    fun allowNonDescriptiveHeadSigns(todayDate: Int, mRouteId: Long) =
+        allowNonDescriptiveHeadSigns[mRouteId] == true || isAllowedUntil(allowNonDescriptiveHeadSignsUntil[mRouteId], todayDate)
+
+    private fun isAllowedUntil(dateStr: String?, todayDate: Int) =
+        dateStr?.toIntOrNull()?.let { todayDate <= it } ?: false
 }