Key legal question
Whether Art. 27(1)(a) no. 1 VZV is constitutional as a basis for periodic medical checks of C1 licence holders.
Extracted holding
The provision has a sufficient statutory basis, serves road-safety interests, and is proportionate; it does not amount to unlawful age discrimination.
Extracted reasoning
The Federal Council stayed within the delegation of the Road Traffic Act. Higher-category drivers may be subject to stricter fitness requirements because heavier vehicles pose greater risks. The age-based differentiation is justified by the expected decline in fitness and the need for regular assessments.