The changes apply to the city’s Class C licence, which covers mobile cranes with a boom less than 200 feet and a capacity of 50 tons or less. A DoB statement said, “The need for this licensing overhaul comes after DOI’s arrest of the Department’s senior crane inspector in June. The Department will continue to review its procedures with DOI’s assistance.

“The Department, which is responsible for the exams required for the Class C license, halted the testing process following allegations that the testing had been compromised. To ensure the integrity of the process, the Department is now working with the NCCCO to begin administering the NCCCO exams.”

As well as requiring certification, the city’s licensing scheme has an experience requirement: applicants must have at least two years of experience within three years prior to application under the direct and continuing supervision of a licensed HMO in New York City or in another jurisdiction that regulates crane operators, and at least one of the required years of experience must be in New York City or another dense urban environment.