Roll-Over Protective Structure without enclosed sides. Provides overhead protection while maintaining visibility and ventilation. Common on smaller machines and in warm climates.

Fully enclosed operator compartment with doors, windows, and climate control. Provides weather protection, reduced noise, and optional air conditioning/heating.

Overhead roof structure without side enclosures. Provides sun and rain protection with maximum visibility and airflow. Simpler than ROPS.

Falling Object Protective Structure - reinforced overhead protection designed to protect from falling debris. Often combined with ROPS for dual certification.