diff --git a/colin-api/src/colin_api/models/filing.py b/colin-api/src/colin_api/models/filing.py
index dbc48c097b..baa60068ee 100644
--- a/colin-api/src/colin_api/models/filing.py
+++ b/colin-api/src/colin_api/models/filing.py
@@ -352,6 +352,17 @@ class FilingSource(Enum):
         'courtOrder': {
             'type_code_list': ['COURT'],
             Business.TypeCodes.BC_COMP.value: 'COURT'
+        },
+        'putBackOn': {
+            'type_code_list': ['CO_PO'],
+            Business.TypeCodes.BCOMP.value: 'CO_PO',
+            Business.TypeCodes.BC_COMP.value: 'CO_PO',
+            Business.TypeCodes.ULC_COMP.value: 'CO_PO',
+            Business.TypeCodes.CCC_COMP.value: 'CO_PO',
+            Business.TypeCodes.BCOMP_CONTINUE_IN.value: 'CO_PO',
+            Business.TypeCodes.CONTINUE_IN.value: 'CO_PO',
+            Business.TypeCodes.ULC_CONTINUE_IN.value: 'CO_PO',
+            Business.TypeCodes.CCC_CONTINUE_IN.value: 'CO_PO',
         }
     }
 
@@ -618,7 +629,7 @@ def _insert_filing(cls, cursor, filing,  # pylint: disable=too-many-statements,
                                       'CONTB', 'CONTI', 'CONTU', 'CONTC',
                                       'NOABE', 'NOALE', 'NOALR', 'NOALD',
                                       'NOALA', 'NOALB', 'NOALU', 'NOALC',
-                                      'CONTO', 'COUTI',
+                                      'CONTO', 'COUTI', 'CO_PO',
                                       'AGMDT', 'AGMLC',
                                       'RESTF', 'RESTL', 'RESXL', 'RESXF',
                                       'REGSN', 'REGSO', 'COURT']:
@@ -1214,7 +1225,7 @@ def add_filing(cls, con, filing: Filing) -> int:
                                           'amalgamationApplication', 'annualReport', 'changeOfAddress',
                                           'changeOfDirectors', 'consentContinuationOut', 'continuationIn',
                                           'continuationOut', 'courtOrder',
-                                          'dissolution', 'incorporationApplication', 'registrarsNotation',
+                                          'dissolution', 'incorporationApplication', 'putBackOn', 'registrarsNotation',
                                           'registrarsOrder', 'restoration', 'specialResolution', 'transition']:
                 raise InvalidFilingTypeException(filing_type=filing.filing_type)
 
@@ -1252,6 +1263,8 @@ def add_filing(cls, con, filing: Filing) -> int:
                 cls._process_continuation_out(cursor, filing)
             elif filing.filing_type == 'restoration':
                 cls._process_restoration(cursor, filing)
+            elif filing.filing_type == 'putBackOn':
+                cls._process_put_back_on(cursor, filing)
             elif filing.filing_type == 'alteration':
                 # alter corp type
                 if (
@@ -1447,6 +1460,21 @@ def _process_restoration(cls, cursor, filing):
             corp_state = Business.CorpStateTypes.LIMITED_RESTORATION.value
         Business.update_corp_state(cursor, filing.event_id, corp_num, corp_state)
 
+    @classmethod
+    def _process_put_back_on(cls, cursor, filing):
+        """Process Put Back On."""
+        corp_num = filing.get_corp_num()
+
+        Office.end_office(cursor=cursor,
+                          event_id=filing.event_id,
+                          corp_num=corp_num,
+                          office_code=Office.OFFICE_TYPES_CODES['custodialOffice'])
+
+        Party.end_current(cursor, filing.event_id, corp_num, 'Custodian')
+
+        corp_state = Business.CorpStateTypes.ACTIVE.value  # Active for Put Back On
+        Business.update_corp_state(cursor, filing.event_id, corp_num, corp_state)
+
     @classmethod
     def _process_continuation_out(cls, cursor, filing):
         """Process continuation out."""
diff --git a/colin-api/src/colin_api/resources/filing.py b/colin-api/src/colin_api/resources/filing.py
index a22337920d..0a83b3a64e 100644
--- a/colin-api/src/colin_api/resources/filing.py
+++ b/colin-api/src/colin_api/resources/filing.py
@@ -137,6 +137,7 @@ def post(legal_type, identifier, **kwargs):
                     'courtOrder': json_data.get('courtOrder', None),
                     'dissolution': json_data.get('dissolution', None),
                     'incorporationApplication': json_data.get('incorporationApplication', None),
+                    'putBackOn': json_data.get('putBackOn', None),
                     'registrarsNotation': json_data.get('registrarsNotation', None),
                     'registrarsOrder': json_data.get('registrarsOrder', None),
                     'restoration': json_data.get('restoration', None),