New York City enacted a law in 1968 requiring that all the cranes used in the city have a structural study performed by a professional engineer and approved by Cranes & Derricks, a division of the NYC Department of Building. Howard I. Shapiro & Associates is the leading firm specializing in prototype applications and has successfully obtained approvals for most of the mobile cranes, tower cranes, and derricks used in NYC today. Our unparalleled expertise and close relationships with crane and equipment manufacturers from around the world have made us the leader in this specialty.