How far may indivisible cargo project rearward beyond the rear reflectors of a heavy truck without requiring an oversized transport permit, and how must it be marked?

1. Up to 10.00 meters without marking
2. Rear overhang is strictly prohibited under all circumstances
3. Up to 50 cm with a yellow flag only
4. Up to 5.00 meters behind the center of the rear axle; a projection extending more than 1.00 meter beyond the vehicle must be conspicuously marked