ARTICLE 3. Competencies of the departments. Without prejudice to what is established in other legal regulations, it is up to the departments to exercise the following powers related to the provision of public drinking water and basic sanitation services: 1. Contribute to the provision of public drinking water and basic sanitation services through the promotion, structuring and implementation of regional schemes. 2. Promote, coordinate and/or co-finance the operation of regional schemes for the provision of public drinking water and basic sanitation services. 3. Ensure that the inhabitants of districts or municipalities not certified in drinking water and basic sanitation are efficiently provided with public drinking water and basic sanitation services, in the terms of Law 142 of 1994. 4. Manage the resources of the General Participation System for Drinking Water and Basic Sanitation of non-certified districts and municipalities, with the exception of the Capital District of Bogotá.