diff --git a/README.md b/README.md
index 10ba8dcc..cf4196bc 100644
--- a/README.md
+++ b/README.md
@@ -100,6 +100,7 @@ Currently the following service providers are supported:
 - [Abfallwirtschaft Stuttgart](./doc/source/stuttgart_de.md)
 - [Abfallwirtschaft Südholstein](./doc/source/awsh_de.md)
 - [Abfallwirtschaft Zollernalbkreis](./doc/source/abfall_zollernalbkreis_de.md)
+- [Alb-Donau-Kreis](./doc/source/buergerportal_de.md)
 - [ART Trier](./doc/source/art_trier_de.md)
 - [AVL Ludwigsburg](./doc/source/avl_ludwigsburg_de.md)
 - [AWB Bad Kreuznach](./doc/source/awb_bad_kreuznach_de.md)
@@ -111,9 +112,10 @@ Currently the following service providers are supported:
 - [AWIDO-online.de](./doc/source/awido_de.md)
 - [Berlin-Recycling.de](./doc/source/berlin_recycling_de.md)
 - [Bogenschuetz-Entsorgung.de](./doc/source/infeo_at.md)
+- [Biedenkopf MZF](./doc/source/buergerportal_de.md)
 - [BSR.de / Berliner Stadtreinigungsbetriebe](./doc/source/bsr_de.md)
 - [C-Trace.de](./doc/source/c_trace_de.md)
-- [Cochem-Zell](./doc/source/cochem_zell_online_de.md)
+- [Cochem-Zell](./doc/source/buergerportal_de.md)
 - [EGN-Abfallkalender.de](./doc/source/egn_abfallkalender_de.md)
 - [Erlangen-Höchstadt](./doc/source/erlangen_hoechstadt_de.md)
 - [Jumomind.de](./doc/source/jumomind_de.md)
diff --git a/doc/source/buergerportal_de.md b/doc/source/buergerportal_de.md
new file mode 100644
index 00000000..26034709
--- /dev/null
+++ b/doc/source/buergerportal_de.md
@@ -0,0 +1,63 @@
+# Bürgerportal
+
+Source for waste collection in multiple service areas.
+
+## Configuration via configuration.yaml
+
+```yaml
+waste_collection_schedule:
+  sources:
+    - name: buergerportal_de
+      args:
+        operator: OPERATOR
+        district: DISTRICT
+        subdistrict: SUBDISTRICT
+        street: STREET_NAME
+        number: HOUSE_NUMBER
+```
+
+## Supported Operators
+
+- `cochem_zell`: <https://buerger-portal-cochemzell.azurewebsites.net>
+- `alb_donau`: <https://buerger-portal-albdonaukreisabfallwirtschaft.azurewebsites.net>
+- `biedenkopf`: <https://biedenkopfmzv.buergerportal.digital>
+
+### Configuration Variables
+
+**operator**\
+_(string) (required)_
+
+**district**\
+_(string) (required)_
+
+**street**\
+_(string) (required)_
+
+**number**\
+_(string|int) (required)_
+
+**subdistrict**\
+_(string) (optional) (default: null)_
+
+## Example
+
+```yaml
+waste_collection_schedule:
+  sources:
+    - name: buergerportal_de
+      args:
+        operator: cochem_zell
+        district: Bullay
+        subdistrict: Bullay
+        street: Layenweg
+        number: 3
+```
+
+## How to get the source arguments
+
+1. Open the URL of your operator and click on the menu option `Abfuhrkalender` in the left sidebar.
+2. Select your `district` (Ort). _Note_: If your district contains two values separated by a comma, you also have to specify the `subdistrict` (Ortsteil): Enter the first part into the field `district` and the second part into the field `subdistrict`. This is necessary even if your `district` and `subdistrict` have the same value (e.g., `Bullay, Bullay`). Subdistrict may only be left empty if there is no comma in the field value.
+3. Select your `street` (Straße).
+4. Select your `number` (Hausnummer).
+
+All parameters are _case-sensitive_.
diff --git a/info.md b/info.md
index c6ac2750..dc7939c7 100644
--- a/info.md
+++ b/info.md
@@ -86,6 +86,7 @@ Currently the following service providers are supported:
 - [Abfallwirtschaft Stuttgart](https://github.com/mampfes/hacs_waste_collection_schedule/blob/master/doc/source/stuttgart_de.md)
 - [Abfallwirtschaft Südholstein](https://github.com/mampfes/hacs_waste_collection_schedule/blob/master/doc/source/awsh_de.md)
 - [Abfallwirtschaft Zollernalbkreis](https://github.com/mampfes/hacs_waste_collection_schedule/blob/master/doc/source/abfall_zollernalbkreis_de.md)
+- [Alb-Donau-Kreis](https://github.com/mampfes/hacs_waste_collection_schedule/blob/master/doc/source/buergerportal_de.md)
 - [ART Trier](https://github.com/mampfes/hacs_waste_collection_schedule/blob/master/doc/source/art_trier_de.md)
 - [AVL Ludwigsburg](https://github.com/mampfes/hacs_waste_collection_schedule/blob/master/doc/source/avl_ludwigsburg_de.md)
 - [AWB Bad Kreuznach](https://github.com/mampfes/hacs_waste_collection_schedule/blob/master/doc/source/awb_bad_kreuznach_de.md)
@@ -95,10 +96,11 @@ Currently the following service providers are supported:
 - [AWBKoeln.de](https://github.com/mampfes/hacs_waste_collection_schedule/blob/master/doc/source/awbkoeln_de.md)
 - [AWIDO-online.de](https://github.com/mampfes/hacs_waste_collection_schedule/blob/master/doc/source/awido_de.md)
 - [Berlin-Recycling.de](https://github.com/mampfes/hacs_waste_collection_schedule/blob/master/doc/source/berlin_recycling_de.md)
+- [Biedenkopf MZV](https://github.com/mampfes/hacs_waste_collection_schedule/blob/master/doc/source/buergerportal_de.md)
 - [Bogenschuetz-Entsorgung.de](https://github.com/mampfes/hacs_waste_collection_schedule/blob/master/doc/source/infeo_at.md)
 - [BSR.de / Berliner Stadtreinigungsbetriebe](https://github.com/mampfes/hacs_waste_collection_schedule/blob/master/doc/source/bsr_de.md)
 - [C-Trace.de](https://github.com/mampfes/hacs_waste_collection_schedule/blob/master/doc/source/c_trace_de.md)
-- [Cochem-Zell](https://github.com/mampfes/hacs_waste_collection_schedule/blob/master/doc/source/cochem_zell_online_de.md)
+- [Cochem-Zell](https://github.com/mampfes/hacs_waste_collection_schedule/blob/master/doc/source/buergerportal_de.md)
 - [EGN-Abfallkalender.de](https://github.com/mampfes/hacs_waste_collection_schedule/blob/master/doc/source/egn_abfallkalender_de.md)
 - [Erlangen-Höchstadt](https://github.com/mampfes/hacs_waste_collection_schedule/blob/master/doc/source/erlangen_hoechstadt_de.md)
 - [Jumomind.de](https://github.com/mampfes/hacs_waste_collection_schedule/blob/master/doc/source/jumomind_de.md)