Dealing with the Department of Buildings (DOB) can feel like drowning in alphabet soup. Below is a list of the most common acronyms and abbreviations encountered associated with the DOB.

• DOB: Department of Buildings
• NB: New Building
• Alt-1: Alteration 1 application
• Alt-2: Alteration 2 application
• Alt-3: Alteration 3 application
• PACO: Place of Assembly Certificate of Occupancy
• TPA: Temporary Place of Assembly (for an event, e.g.. job fair)
• D2: Directive 2
• D14: Directive 14
• C of O: Certificate of Occupancy
• TCO: Temporary Certificate of Occupancy
• EUP: Equipment Use Permit
• AHV: After Hours Variance
• PW-1: Plan Work Approval Application
• TR-1: Technical Report (associated with controlled inspections)
• S/O: Signoff
• ACP5, ACP7: Asbestos Investigation Reports
• FD: Fire Department
• LOA: Letter of Approval
• LOD: Letter of Defect
• BEC: Bureau of Electrical Control
• DEP: Department of Environmental Protection
• ECB: Environmental Control Board
• DOT: Department of Transportation
• HPD: Department of Housing Preservation and Development
• SWO: Stop Work Order
• WWP: Work Without permit