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DOB Releases Interim Guidelines for Mechanical Systems

DOB Releases Interim Guidelines for Mechanical Systems

By Penny Laughlin

Technology can make our personal and professional lives easier in many ways, but we often encounter a few bumps on the path to progress. Such has been the case with DOB NOW: Build, the online portal of the Department of Buildings (DOB). Last July, DOB migrated applications for mechanical systems (MS) and structural (ST) filings to DOB NOW: Build. In December 2019, the agency issued interim guidelines for structural work types. DOB has now done the same for MS applications.

As the DOB works to improve the online experience, certain MS applications will be handled in the Buildings Information System (BIS).

Mechanical systems requiring Certificate of Compliance (EUP)

Applications for mechanical work that requires a Certificate of Compliance (i.e., Equipment Use Permit) must be filed through DOB NOW: Build for new buildings and alterations:

  • Heating systems
  • Ventilation systems
  • Air conditioning systems
  • Refrigeration systems
  • Cooling towers
  • Associated ducts and piping
  • Generators

General construction and structural work typically associated with installation and alterations of mechanical systems can be included on mechanical plans as part of the MS filing. Alterations that do not affect mechanical systems may be filed in BIS under the OT-GC work type.

Mechanical systems not requiring a Certificate of Compliance (EUP)

Construction and related structural work directly and generally associated with installation and alteration of mechanical systems may be filed under the OT-GC work type. In addition, mechanical work for systems not requiring a Certificate of Compliance can also be included in the OT-GC filing.

One- and Two-Family Homes

The following types of mechanical work done in one- and two- family homes that do not require a permit (per Table 2 of 1 RCNY 101-14) may be filed in BIS in the OT-GC filing:

  • Packaged air conditioning unit in existing buildings
  • Air conditioning and ventilation systems
  • Packaged air conditioning unit
  • Fuel-burning and fuel-oil storage
  • Fuel-burning and fuel-oil storage during construction
  • Refrigerating systems
  • Temporary boilers

We here at Metropolis Group will continue to stay on top of shifting guidelines to make your approval process as painless as possible.

If you have any questions about these interim guidelines, or if you need assistance with your project, contact Metropolis Group at 212.233.6344.