Lux Bus America School Pupil Activity Bus (SPAB) Practice Test 2025 - Free SPAB Practice Questions and Exam Prep Guide

The correct answer is 80 hours, which aligns with federal regulations regarding the maximum working hours for school bus drivers. Under the hours-of-service regulations enforced by the Federal Motor Carrier Safety Administration (FMCSA), a driver is limited to a maximum of 60 hours on duty in any 7 consecutive days if they do not operate a bus for more than 30 days within a consecutive 60-day period. However, for those who operate regularly, the limit extends to 70 hours in 8 consecutive days.

When calculating for an 8-day period, drivers can actually work up to 80 hours as long they follow the necessary rest requirements and do not exceed their daily driving limits. This structure helps ensure safety and compliance with regulations designed to prevent driver fatigue.

Generally, the other options exceed this regulatory maximum, making them invalid. For instance, a limit of 85 hours would violate the safety protocols in place intended to protect both drivers and passengers, demonstrating the importance of adhering to the established working hour limits.