diff --git a/src/main/java/org/opentripplanner/routing/algorithm/mapping/RouteRequestToFilterChainMapper.java b/src/main/java/org/opentripplanner/routing/algorithm/mapping/RouteRequestToFilterChainMapper.java
index 5c105f4804a..e86249f6fc8 100644
--- a/src/main/java/org/opentripplanner/routing/algorithm/mapping/RouteRequestToFilterChainMapper.java
+++ b/src/main/java/org/opentripplanner/routing/algorithm/mapping/RouteRequestToFilterChainMapper.java
@@ -4,9 +4,11 @@
 import java.time.Instant;
 import java.util.List;
 import java.util.function.Consumer;
+import org.opentripplanner.ext.emissions.EmissionsFilter;
 import org.opentripplanner.ext.fares.FaresFilter;
 import org.opentripplanner.ext.ridehailing.RideHailingFilter;
 import org.opentripplanner.ext.stopconsolidation.ConsolidatedStopNameFilter;
+import org.opentripplanner.framework.application.OTPFeature;
 import org.opentripplanner.routing.algorithm.filterchain.GroupBySimilarity;
 import org.opentripplanner.routing.algorithm.filterchain.ItineraryListFilterChain;
 import org.opentripplanner.routing.algorithm.filterchain.ItineraryListFilterChainBuilder;
@@ -107,6 +109,10 @@ public static ItineraryListFilterChain createFilterChain(
       );
     }
 
+    if (OTPFeature.Co2Emissions.isOn() && context.emissionsService() != null) {
+      builder.withEmissions(new EmissionsFilter(context.emissionsService()));
+    }
+
     if (context.stopConsolidationService() != null) {
       builder.withStopConsolidationFilter(
         new ConsolidatedStopNameFilter(context.stopConsolidationService())