Do I have to have a dp certificate to operate dp?

It is still needed, depending on the company's requirements.

Dynamic positioning is a positioning method that can automatically maintain offshore floating devices without mooring. The offshore floating device with dynamic positioning does not need to anchor during offshore drilling operation, which not only reduces the complicated anchoring process, but also can work in water depth not limited by the length of the mooring system, and even can work in water depth greater than1000 m..

Dynamic positioning is a positioning method for offshore engineering ships. Firstly, the position of the ship is determined by sonar, and then the ship's automatic control system gives instructions to control the lateral thrusters installed at the bow and stern to fix the position of the ship.