A petition to amend provisions in Section 22.20, which governs Green Building Requirements, and also applicable definitions contained in Article 2.000

Page 1 of 8 1. Create the following Definitions in Article 2.000: Green Commissioning. The process of verifying and documenting by a Green Commissioning Authority that a building and all of its systems and assemblies are planned, designed, installed, tested, operated, and maintained to meet specified levels of environmentally sustainable performance in accordance with the provisions of Section 22.20 of this Zoning Ordinance. Green Commissioning Authority. An entity which has been approved by a Green Building Rating Program to certify that a building meets or can meet the requirements of the Green Building Rating System and which has been identified by the Owner to lead, plan, schedule, and coordinate the implementation of the Green Commissioning process in accordance with the provisions of Section 22.20 of this Zoning Ordinance. The Green Commissioning Authority must have documented Green Commissioning process experience on at least two building projects with a scope of work similar to the proposed project extending from early design phase through at least ten (10) months of occupancy. The Green Commissioning Authority may be a qualified employee of the Owner, an independent consultant, or a disinterested subcontractor of the design team for the Owner of the property on which the Green Building Project is located. Green Building Professional. A licensed architect or engineer who holds a credential from a Green Building Rating Program indicating advanced knowledge and experience in environmentally sustainable development in general as well as specific Green Building Rating Systems or otherwise possesses comparable experience in environmentally sustainable development in accordance with the provisions of Section 22.20 of this Zoning Ordinance. In instances where a Green Building Rating Program that does not offer such a credential is being applied to meet the provisions of Section 22.20, the designated Green Building Professional shall have demonstrated experience as a project architect or engineer, or as a consultant providing third-party review, on at least three (3) projects that have been certified using the applicable Green Building Rating Program. Green Building Project. Any new construction, or any substantial rehabilitation of an existing building for an existing or new use, that totals 25,000 square feet of Gross Floor Area or more and that (1) requires the issuance of a special permit by the Planning Board under any provision of this Zoning Ordinance (including but not limited to special permits required in Article 13.000 – Planned Unit Development Districts, Section 19.20 – Project Review Special Permit, and Section 5.28.2 – Conversion of Non-Residential Structures to Residential Use) or (2) is subject to the provisions of Section 19.50 – Building and Site Plan Requirements, shall be considered a Green Building Project subject to the requirements of Sections 22.20 through 22.25. Green Building Rating Program. A collection of activities and services directed by a nationally- recognized organization to promote environmentally sustainable urban development and to recognize projects that achieve defined environmentally sustainable development objectives, including the establishment and oversight of one or more Green Building Rating Systems in accordance with the provisions of Section 22.20 of this Zoning Ordinance. Green Building Rating System. A specific set of design standards for environmentally sustainable performance established under the auspices of a Green Building Rating Program against which a project or building design may be evaluated in accordance with the provisions of Section 22.20 of this Zoning Ordinance. Energy Simulation Tool. A State Building Code compliant software program or calculation-based methodology that projects the annual energy use of a building, approved for use in the Green

Page 2 of 8 Building Project by a Green Building Professional in connection with Green Building Rating Program in accordance with the provisions of Section 22.20 of this Zoning Ordinance.

2. Under Section 22.20 “Green Building Requirements,” amend “Statement of Purpose” section as follows: 22.20

GREEN BUILDING REQUIREMENTS

22.21 Statement of Purpose. This Section 22.20 is adopted to ensure that major new projects and substantially rehabilitated buildings in the City of Cambridge are planned, designed and constructed in a sustainable way so as to minimize adverse environmental impacts as they are initially constructed and as they are occupied and operated over the course of their useful lives.

It is the purpose of this Section 22.20 to encourage the reuse of existing buildings and materials; to encourage the conservation of natural resources and reduction of toxins in new construction and substantial rehabilitation of existing buildings through selection of recycled and otherwise environmentally appropriate building materials and methods; to ensure a reduction in the use of energy in both the initial construction of the project and in its daily operation; and to encourage an arrangement of buildings and mix of uses, on individual lots and within the city as a whole, that will foster renewable energy generation and pedestrian, bicycle, and public transit use in the city.

While the provisions of this section apply to projects of 25,000 square feet or larger, developments of all sizes are encouraged to incorporate sustainable design principles. Notwithstanding the provisions of this Article 22.00, the requirements of all local, state and/or federal regulations applicable to a project must be met, particularly the State Building Code, including its energy components.

3. Amend “Applicability” section as follows: 22.22 Applicability. The provisions of these Sections 22.20 through 22.25 shall apply to a Green Building Project as defined in Article 2.000 of this Zoning Ordinance.

4. Add section entitled “Authorized Green Building Rating Programs and Green Building Rating Systems” as follows: 22.23 Authorized Green Building Rating Programs and Green Building Rating Systems. 22.23.1 Authorized Green Building Rating Programs. Any of the following Green Building Rating Programs may be used for the application of these Sections 22.20 through 22.25: (a) the Leadership in Energy and Environmental Design (“LEED”) Green Building Rating Program developed and overseen by the United States Green Building Council; (b) the Passive House Green Building Rating Program developed and overseen by either Passive House Institute US, Inc. or the Passive House Institute ; or