30 CFR § 56.14210
Movement of dippers, buckets, loading booms, or suspended loads
July 29, 2020
(a) Dippers, buckets, loading booms, or suspended loads shall not be swung over the operators' stations of self-propelled mobile equipment until the equipment operator is out of the operator's station and in a safe location.
(b) This section does not apply when the equipment is specifically designed to protect the equipment operator from falling objects.