Council Regulation (EEC) No. 3821, commonly known as the Tachograph Regulation, establishes uniform provisions for the construction, installation, use, and inspection of recording equipment in road transport. This regulation is essential for monitoring and controlling the driving and rest times of professional drivers, thereby promoting road safety, fair competition, and the health and safety of drivers.

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Essential Requirements​

1. Construction and Installation:
   The regulation defines the technical standards for the construction and installation of tachographs. These devices must be capable of recording data related to driving time, rest periods, and other work activities of drivers. Tachographs must be installed in vehicles in a manner that ensures accuracy and resistance to tampering.
   
   
   
2. Use and Data Recording:
   Drivers are required to use tachographs to record driving times, rest periods, and other related activities. The regulation mandates that the recorded data must be clear, accurate, and easily retrievable for inspection by enforcement authorities. This ensures that drivers comply with legal limits on driving and rest times, helping to prevent fatigue-related accidents.
   
   
   
3. Inspection and Maintenance:
   The regulation outlines procedures for the regular inspection and maintenance of tachographs to ensure their continued accuracy and reliability. This includes periodic calibration and certification of the devices by authorized technicians. Proper maintenance helps prevent tampering and ensures that the recorded data remains accurate over time.
   
   
   
4. Enforcement and Penalties:
   The regulation provides a framework for enforcing the use of tachographs and imposing penalties for non-compliance. Enforcement authorities have the right to inspect tachograph data to ensure that drivers and transport operators are adhering to the rules. Failure to comply may result in fines, penalties, and other legal consequences.
   

Council Regulation (EEC) No. 3821 is part of a broader effort to improve road safety, ensure fair competition among transport operators, and protect driver welfare. By complying with this regulation, transport operators contribute to creating a safer and more orderly environment in road transport.