1. Either change the law for all or none.
2. Consider start times of the duty day and when it finishes.
3. Limit the length of the duty day based on time of day (See above) and number of legs.
4. Ensure that operational limits aren't so generous that unrealistic scheduling can be allowed to end run the intent of the (scheduled) limits.
5. Minimum rest periods must allow a honest 8 hours in the rack.