2009-011 - Placement
This document clarifies the requirements for using existing structures to support the weight of concrete during placement and the inspection procedures and requirements for such concrete placement.
2009-014 - Retesting and Evaluation
To evaluate the condition of the concrete in structures where the testing performed on the concrete by the testing laboratory has been identified as questionable, and thus must be supplemented by additional testing and evaluation.
2009-026 - Special Inspection and Field & Laboratory Testing
This document clarifies the requirement of special inspection and field and laboratory testing of cast-in-place concrete.
2010-18 - Mix Designs
This document establishes the Department's requirements for preparing and submitting concrete mix designs, procedures for acceptance of field changes to an approved concrete mix design, and acceptance testing of concrete associated with field changes.
2011-008 - Approved Concrete Producers
This bulletin establishes the criteria for concrete producers to perform and file concrete mix designs with the Department of Buildings as approved fabricators.
Acceptance criteria for alternative materials
2009-019 – Adhesive Anchors
This bulletin establishes acceptance criteria for adhesive anchoring systems installed in concrete elements as alternative materials in the 2008 NYC Construction Codes.
2009-020 - Stay-in-Place, Foam Plastic Insulating Concrete Form Systems
This bulletin establishes acceptance criteria for stay-in-place, foam plastic insulating concrete form (ICF) systems as alternative materials to the 2008 NYC Construction Codes.
2009-021 - Screw Anchoring Systems
This bulletin establishes acceptance criteria for screw anchoring systems installed in concrete elements as alternative materials in the 2008 NYC Construction Codes.
2010-003 - Threaded High-Strength Steel Reinforcing Bars
This document establishes acceptance criteria for threaded high-strength steel reinforcing bars as alternative materials in the 2008 NYC Construction Codes.
2010-005 - Undercut and Expansion Anchor Systems
This document establishes alternative acceptance criteria for undercut and expansion (displacement-controlled, torque-controlled) anchor systems as prescribed in the 2008 NYC Construction Codes.
2011-009 - Approved Fabricators
This document establishes temporary guidelines for approval of fabricators in accordance with the 2008 NYC Construction Codes.