(a) For purposes of this section, the following definitions apply: (1) âCarbon intensityâ means the quantity of life-cycle greenhouse gas emissions per unit of building material, and specifically the ratio between the net upstream carbon dioxide impact (emissions minus storage) of a material and the weight of the material. (2) âEmbodied carbon trading systemâ means a market-based credit trading platform of greenhouse gas emissions exchanges, banking, credits, and other transactions, governed by rules and protocols established by the state board, that result in the same greenhouse gas emission reduction, over the same time period, as direct compliance with a greenhouse gas emission limit or emission reduction measure adopted by the state board pursuant to this division. (3) âLow-carbon building standardâ means a framework created pursuant to Section 38561.3 to reduce by 40 percent the carbon intensity of the materials used in newly constructed buildings identified in paragraph (1) of subdivision (c) of Section 38561.3 and within the embodied carbon trading system, to facilitate a credit trading platform for building materials along with other requirements as specified. (4) âMaterial life-cycleâ means the aggregate of greenhouse gas emissions associated with material production, as defined in the International Organization for Standardization (ISO) 14040 series of standards with a focus on the Product Stage phases (A1-A3). (5) âEntity undertaking the construction of a projectâ means a person or entity who owns the real property that is the subject of a development agreement. (b) The state board may establish an embodied carbon trading system in compliance with the requirements set forth in Section 38561.3 and this section that meets both of the following requirements: (1) If the state board opts to establish an embodied carbon trading system, the system shall be designed to be used by entities undertaking a construction project and building material manufacturers. (2) The embodied carbon trading system unit of measurement shall be Global Warming Potential (GWP) per gross square foot (kg CO 2 e/sq. ft. 2 ). (c) The state board shall have the flexibility to design the embodied carbon trading system and may do all of the following with respect to the embodied carbon trading system: (1) (A) Adopt rules and regulations for the credit allocation approach, the anticipated carbon price in the scheme, and trading periods. (B) In developing the rules and regulations for the credit allocation approach, including those governing any tradeable compliance instrument, make efforts to avoid an overabundance of compliance credits in the market, and, to this end, may consider setting an upper limit on amount of credits that can be generated per unit of material. (2) Consider using the credits generated through the use of the embodied carbon trading system to help promote innovation and investment in building construction materials that reduce emissions of greenhouse gases. (3) Consider all relevant information pertaining to low-carbon building materials reduction programs in other states, localities, and nations, including other states, Canada, and the European Union, and, in doing so, review existing and proposed international, federal, and state greenhouse gas emission reporting programs, make reasonable efforts to promote consistency among the programs established pursuant to this division and other programs, and streamline reporting requirements on greenhouse gas emission sources. (4) Integrate the embodied carbon trading system with the framework described in Section 38561.3 on or before December 31, 2026, and shall implement that system on and after January 1, 2029. (5) Consult with the California Building Standards Commission, the Department of Housing and Community Development, and the State Energy Resources Conservation and Development Commission in the development of building regulations, in order to minimize duplica
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