diff --git a/database/__init__.py b/database/__init__.py
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..705b9c6232efd4d7d859e11e87c83cc4c32da0f4 100644
--- a/database/__init__.py
+++ b/database/__init__.py
@@ -0,0 +1,21 @@
+"""
+Copyright (C) 2018 Centro de Computacao Cientifica e Software Livre
+Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+
+This file is part of HOTMapper.
+
+HOTMapper is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+HOTMapper is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with simcaq-cdn.  If not, see <https://www.gnu.org/licenses/>.
+
+"""
+
diff --git a/database/actions.py b/database/actions.py
index 06c676a9b341d58af133c52abe8938b03a5578b4..9ba4c3876ff585155b8e29640e76965e216befcf 100644
--- a/database/actions.py
+++ b/database/actions.py
@@ -1,3 +1,24 @@
+"""
+Copyright (C) 2018 Centro de Computacao Cientifica e Software Livre
+Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+
+This file is part of HOTMapper.
+
+HOTMapper is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+HOTMapper is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with simcaq-cdn.  If not, see <https://www.gnu.org/licenses/>.
+
+"""
+
 '''Database manipulation actions - these can be used as models for other modules.'''
 import logging
 from sqlalchemy import create_engine, MetaData
diff --git a/database/base.py b/database/base.py
index 5ec22f23b88fc8365969f9a65a6ae9b5104480c0..d00aa5b4aa71e97da9681797777c20d5e2017cc1 100644
--- a/database/base.py
+++ b/database/base.py
@@ -1,3 +1,24 @@
+"""
+Copyright (C) 2018 Centro de Computacao Cientifica e Software Livre
+Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+
+This file is part of HOTMapper.
+
+HOTMapper is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+HOTMapper is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with simcaq-cdn.  If not, see <https://www.gnu.org/licenses/>.
+
+"""
+
 '''Module containing base declarations'''
 
 
diff --git a/database/database_table.py b/database/database_table.py
index 7cb205d54fad6512883cfc2251cf5aa5cf1a1d90..ef3d809acdd1e80a9b796407f9399ece9b9c37c5 100644
--- a/database/database_table.py
+++ b/database/database_table.py
@@ -1,3 +1,24 @@
+"""
+Copyright (C) 2018 Centro de Computacao Cientifica e Software Livre
+Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+
+This file is part of HOTMapper.
+
+HOTMapper is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+HOTMapper is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with simcaq-cdn.  If not, see <https://www.gnu.org/licenses/>.
+
+"""
+
 '''This module contains the definition of the DatabaseTable class and a constructor'''
 import os
 import time
diff --git a/database/protocol.py b/database/protocol.py
index f09c6197b0ef6e35b52c9db8dd21420949f9b89a..d78edf963b588a2b24d4805c7d4cfd82474b54e2 100644
--- a/database/protocol.py
+++ b/database/protocol.py
@@ -1,3 +1,24 @@
+"""
+Copyright (C) 2018 Centro de Computacao Cientifica e Software Livre
+Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+
+This file is part of HOTMapper.
+
+HOTMapper is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+HOTMapper is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with simcaq-cdn.  If not, see <https://www.gnu.org/licenses/>.
+
+"""
+
 ''' Routines related to column dictionary generation.
 Names comonly used:
 - original columns: columns as they are named in the original database;
diff --git a/database/types.py b/database/types.py
index 61b6987cf8b7bc8623828a93adc0444c9ab5f96b..1f0b24a7593e1d8d6ba5c766865e8227027b9018 100644
--- a/database/types.py
+++ b/database/types.py
@@ -1,3 +1,24 @@
+"""
+Copyright (C) 2018 Centro de Computacao Cientifica e Software Livre
+Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+
+This file is part of HOTMapper.
+
+HOTMapper is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+HOTMapper is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with simcaq-cdn.  If not, see <https://www.gnu.org/licenses/>.
+
+"""
+
 import re
 from sqlalchemy_monetdb.types import MONETDB_TYPE_MAP, TINYINT, DOUBLE_PRECISION
 from sqlalchemy.ext.compiler import compiles
diff --git a/generate_schema.py b/generate_schema.py
index 53f1d05fea62e324af3b59ae7ea23fc81f3c554f..ab990c2ae2956fe4bae1b0b20f620c96aade9c5d 100644
--- a/generate_schema.py
+++ b/generate_schema.py
@@ -1,3 +1,24 @@
+"""
+Copyright (C) 2018 Centro de Computacao Cientifica e Software Livre
+Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+
+This file is part of HOTMapper.
+
+HOTMapper is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+HOTMapper is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with simcaq-cdn.  If not, see <https://www.gnu.org/licenses/>.
+
+"""
+
 '''Generates schema in mysql dialect. Useful for documentation'''
 from sqlalchemy import create_engine, MetaData, inspect
 from sqlalchemy.dialects import mysql
diff --git a/manage.py b/manage.py
index ececfdc17d73a135e44ef28e13718e2b92f1cb08..a4dba5084866b5f6d2e27e04e196f3156f831536 100755
--- a/manage.py
+++ b/manage.py
@@ -1,4 +1,28 @@
 #!/usr/bin/env python3
+
+"""
+Copyright (C) 2018 Centro de Computacao Cientifica e Software Livre
+Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+
+This file is part of HOTMapper.
+
+HOTMapper is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+HOTMapper is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with simcaq-cdn.  If not, see <https://www.gnu.org/licenses/>.
+
+"""
+
+
+
 '''CLI for database module'''
 from manager import Manager
 
diff --git a/mapping_functions/__init__.py b/mapping_functions/__init__.py
index 9f17110fc6bc945861940d1eebc239d7906822d1..36f5b730e01e6cde511a40fa8cce38d091a53ba2 100644
--- a/mapping_functions/__init__.py
+++ b/mapping_functions/__init__.py
@@ -1,3 +1,24 @@
+"""
+Copyright (C) 2018 Centro de Computacao Cientifica e Software Livre
+Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+
+This file is part of HOTMapper.
+
+HOTMapper is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+HOTMapper is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with simcaq-cdn.  If not, see <https://www.gnu.org/licenses/>.
+
+"""
+
 ''' This module contains functions to generate pairing reports '''
 import os
 import pandas as pd
diff --git a/mapping_functions/table_manipulation.py b/mapping_functions/table_manipulation.py
index 80de3fae35b2cccb83938f6b6afe951bace93128..9cb106bffe34a65391d41d4043d65350d201bc6a 100644
--- a/mapping_functions/table_manipulation.py
+++ b/mapping_functions/table_manipulation.py
@@ -1,3 +1,24 @@
+"""
+Copyright (C) 2018 Centro de Computacao Cientifica e Software Livre
+Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+
+This file is part of HOTMapper.
+
+HOTMapper is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+HOTMapper is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with simcaq-cdn.  If not, see <https://www.gnu.org/licenses/>.
+
+"""
+
 '''Defines functions to build the pairing reports, without concern for specific type output'''
 import os
 import numpy as np
diff --git a/pnad_protocol_from_dic.py b/pnad_protocol_from_dic.py
index 517a8885631b5011f43c066a0a3d56440471eaa7..4879ce7565497097af3ed90f1488aa09b3b605e9 100644
--- a/pnad_protocol_from_dic.py
+++ b/pnad_protocol_from_dic.py
@@ -1,3 +1,25 @@
+"""
+Copyright (C) 2018 Centro de Computacao Cientifica e Software Livre
+Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+
+This file is part of HOTMapper.
+
+HOTMapper is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+HOTMapper is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with simcaq-cdn.  If not, see <https://www.gnu.org/licenses/>.
+
+"""
+
+
 import sys
 import pandas as pd
 
diff --git a/protocols_comparison.py b/protocols_comparison.py
index cf6fd3be85bd534b86d79edb5e22e85a3700ea14..661d24e0d98a10e8c094541e2b5c5ecbb443be6a 100644
--- a/protocols_comparison.py
+++ b/protocols_comparison.py
@@ -1,3 +1,24 @@
+"""
+Copyright (C) 2018 Centro de Computacao Cientifica e Software Livre
+Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+
+This file is part of HOTMapper.
+
+HOTMapper is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+HOTMapper is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with simcaq-cdn.  If not, see <https://www.gnu.org/licenses/>.
+
+"""
+
 import pandas as pd
 import os
 
diff --git a/settings.py b/settings.py
index fd664c9b6044f660d43ebba647849fcb59d715c9..94ca902077f8f1103f92e1a77d43967188fcc066 100644
--- a/settings.py
+++ b/settings.py
@@ -1,3 +1,25 @@
+"""
+Copyright (C) 2018 Centro de Computacao Cientifica e Software Livre
+Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+
+This file is part of HOTMapper.
+
+HOTMapper is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+HOTMapper is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with simcaq-cdn.  If not, see <https://www.gnu.org/licenses/>.
+
+"""
+
+
 '''Settings used by the database module'''
 import logging
 
diff --git a/tests/__init__.py b/tests/__init__.py
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..705b9c6232efd4d7d859e11e87c83cc4c32da0f4 100644
--- a/tests/__init__.py
+++ b/tests/__init__.py
@@ -0,0 +1,21 @@
+"""
+Copyright (C) 2018 Centro de Computacao Cientifica e Software Livre
+Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+
+This file is part of HOTMapper.
+
+HOTMapper is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+HOTMapper is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with simcaq-cdn.  If not, see <https://www.gnu.org/licenses/>.
+
+"""
+
diff --git a/tests/database_table_test.py b/tests/database_table_test.py
index aabe54caf9c96fa1e396b54e2d3543531320a47c..e06c5864facc41b9ff29fd331dad5d92cbf501f9 100644
--- a/tests/database_table_test.py
+++ b/tests/database_table_test.py
@@ -1,4 +1,26 @@
 #!/usr/bin/env python3
+
+"""
+Copyright (C) 2018 Centro de Computacao Cientifica e Software Livre
+Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+
+This file is part of HOTMapper.
+
+HOTMapper is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+HOTMapper is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with simcaq-cdn.  If not, see <https://www.gnu.org/licenses/>.
+
+"""
+
 '''Describes tests for the database.database_table module, concerning DatabaseTable objects
 and their manipulation'''
 import unittest