Final answer:
The success of a federal system requires cooperation and clarity between the central, provincial, and local levels, each with distinct roles from national defense to local community affairs.
Step-by-step explanation:
For the successful implementation of a federal system in a country, cooperation and clearly defined roles at the central, provincial, and local levels are essential. The central government focuses on broader issues such as national defense, interstate transportation, regulating the common currency, and promoting a unified economy. Provincial or state governments handle matters within their regions like education, healthcare, and public safety.
Local governments, on the other hand, are involved in the administration of more specific community affairs and execute the policies set forth by higher levels of government. Federalism works when there is a legal hierarchy where national law supersedes state law, and both state and local governments provide support to the national government. Additionally, the system's efficiency is enhanced by the complementary capacities of the different government levels and the effective representation of state and local interests through intergovernmental lobbies.