I wouldn’t worry about certifications, but more your experience handling a large bulky load. Certifications are to give companies some assurance of their operator’s competence. No company shipping equipment or company renting handling equipment is going to ask for certifications IMO.
Are you receiving at a trailer bed high dock or on the ground? Ground can be hazardous as load tipping and falling is in play.
How long is the pallet it’s on and how are the runners oriented. Might need longer forks to properly handle.
Load weight and center of gravity. Might need a fork lift w more counterweight. Especially, if handling from the ground.
Standard Flatbed, lowboy or standard trailer? Will make a difference on where you pick it up from if on the ground.
Answer these questions and I’ll be glad to give you additional advice. Or better yet, ask the company shipping how they loaded the equipment and replicate that. Talk to the shipping Dept of the company sending the CNC machine, although sadly that’s likely in Japan, Korea of China. We had dozens of these. I don’t remember any issues but we had several types of dock doors, and some massive forklifts that our tradesmen had access to for this type of load.
I’ve had customers lose a large load, badly injuring a worker on the ground because the team didn’t know what they were doing. If your renting something, go big and be safe. It won’t be that much extra.