Brooklyn since 2014All five boroughsSame-day response during business hours
Quick Answer
General informational summary. Not legal advice for your situation. Consult an attorney before acting on any specific matter.
BC § 415.11.11.1
An approved automatic sprinkler system shall be provided in metallic and noncombustible, nonmetallic exhaust ducts where all of the following conditions apply: 1. Where the largest cross-sectional diameter is equal to or greater than 10 inches (254 mm).
2.The ducts are within the building.
3.The ducts are conveying flammable gases, vapors or fumes.
Our team
Resources & updates
Browse practical legal articles, violation-code tools, city-agency resources, and searchable references without leaving the landing page.
The new DOB NOW: Safety portal is live as of December 15, 2025. Learn the 5 key changes, step-by-step submission process, and how to avoid the 20 common disapproval reasons.
NYC property owners face urgent DOB deadlines: a historic basement legalization program, year-end inspection reports due December 31st, and the new 2025 Electrical Code effective December 21st. Here's what you need to know.
Your complete guide to understanding, navigating, and resolving NYC Department of Buildings violations with confidence. Learn about violation classes, penalties, and resolution strategies.
Complete guide to NYC Admin Code § 19-190(b) 'Failure to Yield Causing Physical Injury' summonses at OATH. Learn about phone hearings, flat fee structure, and what to expect from the process.
Need something specific? Search the full resources library for articles, agencies, violation codes, and legal-code references.
Search all resourcesFree case review
Free 15-minute case review with the attorney handling your matter. Same-day response during business hours across all five boroughs — OATH hearings, Housing Court, and real estate closings.
Same-day response
During business hours
Direct attorney access
Same lawyer from intake to close
Flat-fee pricing
On most OATH and closing matters