diff --git a/custom_components/waste_collection_schedule/waste_collection_schedule/source/c_trace_de.py b/custom_components/waste_collection_schedule/waste_collection_schedule/source/c_trace_de.py
index 9ba8af0f..26e0d02f 100644
--- a/custom_components/waste_collection_schedule/waste_collection_schedule/source/c_trace_de.py
+++ b/custom_components/waste_collection_schedule/waste_collection_schedule/source/c_trace_de.py
@@ -160,7 +160,14 @@ BASE_URL = "https://{subdomain}.c-trace.de"
 
 class Source:
     def __init__(
-        self, strasse, hausnummer, gemeinde="", ort="", ortsteil="", service=None
+        self,
+        strasse,
+        hausnummer,
+        gemeinde="",
+        ort="",
+        ortsteil="",
+        service=None,
+        abfall="",
     ):
         # Compatibility handling for Bremen which was the first supported
         # district and didn't require to set a service name.
@@ -192,6 +199,9 @@ class Source:
         self._base_url = BASE_URL.format(subdomain=subdomain)
         self.ical_url_file = ical_url_file
         self._ics = ICS(regex=r"Abfuhr: (.*)")
+        if not abfall:
+            abfall = "|".join(str(i) for i in range(0, 99))
+        self._abfall = abfall
 
     def fetch(self):
         session = requests.session()
@@ -213,7 +223,7 @@ class Source:
             "Gemeinde": self._gemeinde,
             "Strasse": self._strasse,
             "Hausnr": self._hausnummer,
-            "Abfall": "|".join(str(i) for i in range(0, 99)),  # return all waste types
+            "Abfall": self._abfall,
         }
         if self._ortsteil:
             args["Ortsteil"] = self._ortsteil
diff --git a/doc/source/c_trace_de.md b/doc/source/c_trace_de.md
index 474e80af..c5be83c3 100644
--- a/doc/source/c_trace_de.md
+++ b/doc/source/c_trace_de.md
@@ -15,32 +15,37 @@ waste_collection_schedule:
         ortsteil: ORTSTEIL
         strasse: STRASSE
         hausnummer: HAUSNUMMER
+        abfall: ABFALLARTEN
 ```
 
 ### Configuration Variables
 
-**service**  
-*(string) (required)*  
+**service**
+*(string) (required)*
 Name of the service which is specific to your municipality. See the table below to get the right value for your location.
 
-**ort**  
+**ort**
 *(string) (optional)*
 Needed for most municipalities but no all
 
-**gemeinde**  
+**gemeinde**
 *(string) (optional)*
 Needed for some municipalities but not all (can be left empty if same as `ort` or unneeded)
 
-**ortsteil**  
+**ortsteil**
 *(string) (optional)*
 Needed only for some municipalities but not all (can be left empty if unneeded)
 
-**strasse**  
+**strasse**
 *(string) (required)*
 
-**hausnummer**  
+**hausnummer**
 *(string) (required)*
 
+**abfall**
+*(string) (optional)*
+Needed only to filter waste types (if empty you get all waste types). Separator between waste types is '|'.
+
 ## Example
 
 ```yaml
@@ -122,4 +127,4 @@ Link for above image: https://web.c-trace.de/segebergwzv-abfallkalender/(S(ebi2z
 
 From this Link you can extract the following parameters:
 
-`web|app`.c-trace.de/`(web.)service`/some-id/abfallkalender/`cal|downloadcal` `/year|`?Ort=`ort`&Ortsteil=`ortsteil`&Strasse=`strasse`&Hausnr=`hausnummer`...
+`web|app`.c-trace.de/`(web.)service`/some-id/abfallkalender/`cal|downloadcal` `/year|`?Ort=`ort`&Ortsteil=`ortsteil`&Strasse=`strasse`&Hausnr=`hausnummer`&abfall='abfallarten'...