{"data":{"id":"us-nyc/n.y.c.-admin.-code-ebc-909","jurisdiction":"us-nyc","citation":"N.Y.C. Admin. Code § EBC 909","heading":"Section EBC 909: Mechanical","body":"909.1 General.\n\nMechanical elements and systems within work areas in buildings undergoing a Level 2 alteration shall comply with Section 309, Section 809 and this section.\n\n909.2 Applicability of New York City Mechanical Code.\n\nWhere an existing building is undergoing a Level 2 alteration, all existing mechanical systems within the work area, including components, equipment and appliances, shall comply with the New York City Mechanical Code, this section and Section 809.2 of this code.\n\n909.2.1 Ventilation.\n\nVentilation systems serving work areas of a Level 2 alteration shall be newly installed or altered to comply with requirements of Chapter 4 of the New York City Mechanical Code for new construction.\n\n909.2.2 Exhaust systems.\n\nExhaust systems serving work areas of a Level 2 alteration shall be newly installed or altered to comply with requirements of Chapter 5 of the New York City Mechanical Code for new construction.\n\n909.2.3 Compliance of ventilation, exhaust, and duct systems as new construction.\n\nWhere the building is undergoing a Level 2 alteration and the work area exceeds 75 percent of the building floor area, all ventilation, exhaust and duct systems shall be newly installed or altered to comply with the provisions of Chapters 4, 5 and 6 of the New York City Mechanical Code for new construction.","path":["New York City Administrative Code","Title 28","Chapter 12: The New York City Existing Building Code (effective July 17, 2027)"],"source_url":"https://files.amlegal.com/pdffiles/NewYorkCity/Admin/XML.zip","current_through":"Local Law 2026/135 (enacted August 31, 2026)","vintage":"","retrieved_at":"2026-09-06T02:48:57Z","sha256":"c363ba5decc5c6a182fc968fca2b232e477923f2c644d4cc4d86b73eb003e0bd","source_id":"us-nyc","stale":false,"prev":"us-nyc/n.y.c.-admin.-code-ebc-908","next":"us-nyc/n.y.c.-admin.-code-ebc-910"},"notice":"GroundRules: Original legal text. Not legal advice."}