diff --git a/definitions/mars/grib.dacl.pb.def b/definitions/mars/grib.dacl.pb.def
index 5ecc47b04..db9763909 100644
--- a/definitions/mars/grib.dacl.pb.def
+++ b/definitions/mars/grib.dacl.pb.def
@@ -1,4 +1,3 @@
-alias   mars.step     = stepRange;
-meta marsQuantile sprintf("%d:%d",perturbationNumber,numberOfForecastsInEnsemble);
-alias   mars.quantile = marsQuantile;
+alias mars.step     = stepRange;
 
+include "mars/mars.quantile.def"
diff --git a/definitions/mars/grib.dacw.pb.def b/definitions/mars/grib.dacw.pb.def
index 5ecc47b04..4144f1bc3 100644
--- a/definitions/mars/grib.dacw.pb.def
+++ b/definitions/mars/grib.dacw.pb.def
@@ -1,4 +1,4 @@
-alias   mars.step     = stepRange;
-meta marsQuantile sprintf("%d:%d",perturbationNumber,numberOfForecastsInEnsemble);
-alias   mars.quantile = marsQuantile;
 
+alias mars.step     = stepRange;
+
+include "mars/mars.quantile.def"
diff --git a/definitions/mars/grib.eefo.pb.def b/definitions/mars/grib.eefo.pb.def
index 5ecc47b04..db9763909 100644
--- a/definitions/mars/grib.eefo.pb.def
+++ b/definitions/mars/grib.eefo.pb.def
@@ -1,4 +1,3 @@
-alias   mars.step     = stepRange;
-meta marsQuantile sprintf("%d:%d",perturbationNumber,numberOfForecastsInEnsemble);
-alias   mars.quantile = marsQuantile;
+alias mars.step     = stepRange;
 
+include "mars/mars.quantile.def"
diff --git a/definitions/mars/grib.eefo.pd.def b/definitions/mars/grib.eefo.pd.def
index a53d82ca0..db9763909 100644
--- a/definitions/mars/grib.eefo.pd.def
+++ b/definitions/mars/grib.eefo.pd.def
@@ -1,3 +1,3 @@
-alias   mars.step     = stepRange;
-meta marsQuantile sprintf("%d:%d",perturbationNumber,numberOfForecastsInEnsemble);
-alias   mars.quantile = marsQuantile;
+alias mars.step     = stepRange;
+
+include "mars/mars.quantile.def"
diff --git a/definitions/mars/grib.eehs.cd.def b/definitions/mars/grib.eehs.cd.def
index 05e94a6f1..db9763909 100644
--- a/definitions/mars/grib.eehs.cd.def
+++ b/definitions/mars/grib.eehs.cd.def
@@ -1,3 +1,3 @@
-alias   mars.step     = stepRange;
-alias   mars.quantile = quantile;
+alias mars.step     = stepRange;
 
+include "mars/mars.quantile.def"
diff --git a/definitions/mars/grib.efhs.cd.def b/definitions/mars/grib.efhs.cd.def
index 05e94a6f1..db9763909 100644
--- a/definitions/mars/grib.efhs.cd.def
+++ b/definitions/mars/grib.efhs.cd.def
@@ -1,3 +1,3 @@
-alias   mars.step     = stepRange;
-alias   mars.quantile = quantile;
+alias mars.step     = stepRange;
 
+include "mars/mars.quantile.def"
diff --git a/definitions/mars/grib.enfo.pb.def b/definitions/mars/grib.enfo.pb.def
index 5ecc47b04..db9763909 100644
--- a/definitions/mars/grib.enfo.pb.def
+++ b/definitions/mars/grib.enfo.pb.def
@@ -1,4 +1,3 @@
-alias   mars.step     = stepRange;
-meta marsQuantile sprintf("%d:%d",perturbationNumber,numberOfForecastsInEnsemble);
-alias   mars.quantile = marsQuantile;
+alias mars.step     = stepRange;
 
+include "mars/mars.quantile.def"
diff --git a/definitions/mars/grib.enfo.pd.def b/definitions/mars/grib.enfo.pd.def
index a53d82ca0..db9763909 100644
--- a/definitions/mars/grib.enfo.pd.def
+++ b/definitions/mars/grib.enfo.pd.def
@@ -1,3 +1,3 @@
-alias   mars.step     = stepRange;
-meta marsQuantile sprintf("%d:%d",perturbationNumber,numberOfForecastsInEnsemble);
-alias   mars.quantile = marsQuantile;
+alias mars.step     = stepRange;
+
+include "mars/mars.quantile.def"
diff --git a/definitions/mars/grib.mfam.pb.def b/definitions/mars/grib.mfam.pb.def
index 27df3cc1b..72b841ecc 100644
--- a/definitions/mars/grib.mfam.pb.def
+++ b/definitions/mars/grib.mfam.pb.def
@@ -3,8 +3,7 @@ alias mars.origin = centre;
 meta    forecastperiod    g1fcperiod(P1,P2,timeRangeIndicator,indicatorOfUnitOfTimeRange) : no_copy;
 alias   mars.fcperiod = forecastperiod;
 
-meta marsQuantile sprintf("%d:%d",perturbationNumber,numberOfForecastsInEnsemble);
-alias   mars.quantile = marsQuantile;
+include "mars/mars.quantile.def"
 
 # TODO: Check why they are set in the first place
 unalias mars.step;
diff --git a/definitions/mars/grib.mfam.pd.def b/definitions/mars/grib.mfam.pd.def
index 96f272f62..cd37d34f6 100644
--- a/definitions/mars/grib.mfam.pd.def
+++ b/definitions/mars/grib.mfam.pd.def
@@ -3,8 +3,7 @@ alias mars.origin = centre;
 meta    forecastperiod    g1fcperiod(P1,P2,timeRangeIndicator,indicatorOfUnitOfTimeRange) : no_copy;
 alias   mars.fcperiod = forecastperiod;
 
-meta marsQuantile sprintf("%d:%d",perturbationNumber,numberOfForecastsInEnsemble);
-alias   mars.quantile = marsQuantile;
+include "mars/mars.quantile.def"
 
 # TODO: Check why they are set in the first place
 unalias mars.step;
diff --git a/definitions/mars/grib.wees.cd.def b/definitions/mars/grib.wees.cd.def
index 05e94a6f1..db9763909 100644
--- a/definitions/mars/grib.wees.cd.def
+++ b/definitions/mars/grib.wees.cd.def
@@ -1,3 +1,3 @@
-alias   mars.step     = stepRange;
-alias   mars.quantile = quantile;
+alias mars.step     = stepRange;
 
+include "mars/mars.quantile.def"
diff --git a/definitions/mars/grib.wehs.cd.def b/definitions/mars/grib.wehs.cd.def
index 05e94a6f1..db9763909 100644
--- a/definitions/mars/grib.wehs.cd.def
+++ b/definitions/mars/grib.wehs.cd.def
@@ -1,3 +1,3 @@
-alias   mars.step     = stepRange;
-alias   mars.quantile = quantile;
+alias mars.step     = stepRange;
 
+include "mars/mars.quantile.def"
diff --git a/definitions/mars/mars.quantile.def b/definitions/mars/mars.quantile.def
new file mode 100644
index 000000000..60431fc38
--- /dev/null
+++ b/definitions/mars/mars.quantile.def
@@ -0,0 +1,17 @@
+if ((stream is "eehs" or stream is "efhs" or stream is "wees" or stream is "wehs") and (type is "cd")){
+ if (edition == 1){
+  # defined in local section 19
+  alias mars.quantile = quantile;
+ } else {
+  meta marsQuantile sprintf("%d:%d",quantileValue,totalNumberOfQuantiles);
+  alias mars.quantile = marsQuantile;
+ }
+ } else { 
+if (edition == 1){
+  meta marsQuantile sprintf("%d:%d",perturbationNumber,numberOfForecastsInEnsemble);
+  alias mars.quantile = marsQuantile;
+ } else {
+  meta marsQuantile sprintf("%d:%d",quantileValue,totalNumberOfQuantiles);
+  alias mars.quantile = marsQuantile;
+ }
+}