This bill mandates that the Department of Administrative Services incorporate proxy carbon pricing into its procurement processes, specifically for transportation and building project costs. A new section, RSA 21-I:14-e, is added to define "proxy carbon pricing" and establish guidelines for its implementation. The bill specifies that starting January 1, 2026, a proxy carbon price of $85 per ton will be used, increasing by $10 annually until 2050, with adjustments for inflation based on a 2010 valuation. Additionally, the bill outlines that the carbon emissions from natural gas will be calculated using a methane multiplier to account for leakage.

The bill does not provide funding or authorize new positions, leading to indeterminable expenditures for the state. The Department of Administrative Services has indicated that while the bill will require additional staff to calculate and analyze carbon metrics for purchasing decisions, the exact number of staff hours and associated costs cannot be predicted. The fiscal impact is expected to materialize after FY 2026, as the bill does not affect revenue or appropriations in the immediate future.