diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 00000000..1b6b3497
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,22 @@
+# Contributing to `rtd-transaction-filter`
+Thank you for contributing! Please follow these guidelines:
+
+
+## Branching Strategy
+- All feature branches should be created from the `master` branch.
+- When complete, open a pull request to merge your feature branch into `master`.
+
+## Commit Guidelines
+This project follows the Conventional Commits specification. Please use the following format for your commit messages:
+
+```
+<type>: [<scope>] <description>
+```
+Common Commit Types
+- feat: A new feature
+- fix: A bug fix
+- chore: Maintenance tasks (build system, package manager, etc.)
+- docs: Documentation changes
+- style: Code style changes (formatting, missing semicolons, etc.)
+- refactor: Code changes that neither fix a bug nor add a feature
+- test: Adding or updating tests
diff --git a/README.md b/README.md
index 17a2d6c1..2b85f5cd 100644
--- a/README.md
+++ b/README.md
@@ -9,3 +9,6 @@ The up-to-date integration guide is maintained here:
 
 [Acquirer Integration with PagoPA Centro Stella - ADE Integration](https://docs.pagopa.it/centrostella-1/centro-stella/instructions-for-agenzia-delle-entrate-mandate)
 [Acquirer Integration with PagoPA Centro Stella - RTD Integration](https://docs.pagopa.it/digital-transaction-register/v/digital-transaction-filter/acquirer-integration-with-pagopa-centrostella/integration)
+
+## Contributing
+See [CONTRIBUTING.md](CONTRIBUTING.md) .
diff --git a/acceptance_tests/certs/sample.jks b/acceptance_tests/certs/sample.jks
deleted file mode 100644
index e69de29b..00000000