Final answer:
While seatbelts are typically required on most earthmoving equipment for safety, certain equipment such as forklifts may be exempt from this requirement depending on local regulations and specific conditions.
Step-by-step explanation:
Seatbelts must be provided and worn on all earthmoving equipment as a critical safety measure. However, there can be exceptions depending on the type of equipment and the operational context. Generally, excavators, bulldozers, and backhoes are types of heavy machinery that typically feature hydraulic and mechanical lever systems and are required to have seatbelts for operator safety. Forklifts, depending on their design and use within certain environments, may sometimes be exempt from the seatbelt requirement, although this can vary by jurisdiction and specific workplace regulations. It is always best to consult the most current safety guidelines and legal requirements for the use of seatbelts on heavy equipment in your region.