https://nyccontractorauthority.com/nyc-department-of-buildings-contractor-registration/
NYC Department of Buildings Contractor Registration
The NYC Department of Buildings DOB maintains a mandatory registration system for contractors performing construction, alteration, and demolition work within...
nyc department of buildingscontractorregistration
https://www.nyc.gov/site/buildings/index.page
NYC Department of Buildings
department ofnycbuildings