On a bus service covered by Article 1 of Royal Decree 443/2001, which proportion of passengers under 12 makes an attendant compulsory, independently of other grounds?

Correct answer

At least 50%.

At least 50%. This is the general Article 8.1.d ground for covered bus services. Proportions of under-16s determine the scope of some services, rather than a universal attendant duty at one third. Other specific grounds include covered non-scheduled services and special education.