Zero-Emission Vehicles.  Under the federal Clean Air Act (CAA), most states, including Washington, are restricted from enacting their own emissions standards for new motor vehicles, which is an authority generally reserved for the federal government.  California is the only state allowed under the CAA to adopt state standards for vehicle emissions.  Other states may adopt vehicle emissions standards identical to California's for specific vehicle model years.
 
In 2020, the Legislature required the Department of Ecology (Ecology) to adopt all of California's motor vehicle emission standards, which includes low-emission vehicle (LEV) and zero-emission vehicle (ZEV) program regulations.

Electric Vehicle Charging Infrastructure Pilot Program.  A 2015 law, required the Washington State Department of Transportation’s (WSDOT) Innovative Partnerships Office to develop a pilot program to support deployment of  electric vehicle (EV) charging infrastructure.  WSDOT is required to adopt rules to implement the pilot program and support current EV drivers as well as the anticipated growth in EV adoption.  In 2019, the program expanded to include proposals for hydrogen fuel station infrastructure.

In 2019, the Legislature created an EV Account for expenditures on certain transportation electrification and alternative fuel related purposes.  Revenues from an annual $75 fee imposed on electric or hybrid vehicles are deposited into the EV Account.
 
Electric Vehicle Infrastructure Requirements.  The State Building Code Council (council) maintains the State Energy Code (code) as a part of the State Building Code, which sets the minimum construction requirements for buildings in the state.  The code provides a maximum and minimum level of energy efficiency for residential buildings and the minimum level of energy efficiency for nonresidential buildings.
 
The council is required to adopt rules to establish EV infrastructure requirements that require EV charging capability at all new buildings that provide on-site parking by July 1, 2021.  These rules must provide that:

• where parking is provided, the greater of one parking space or 10 percent of parking spaces, rounded to the next whole number, must be provided with wiring or raceway size to accommodate 208/240 V 40-amp or equivalent EV charging;
• electrical rooms serving buildings with on-site parking must be sized to accommodate the potential for electrical equipment and distribution required to serve a minimum of 20 percent of the total parking spaces with 208/240 V 40-amp or equivalent EV charging;
• load management infrastructure may be used to adjust the size and capacity of the required building electric service equipment and circuits; and
• for accessible parking spaces, the greater of one parking space or 10 percent of accessible parking spaces, rounded to the next whole number, must be provided with electric vehicle charging infrastructure that may also serve adjacent parking spaces not designated as accessible parking.

Electric Utility Resource Plans.  Electric utilities may be operated by municipalities (municipal electric utilities), public utility districts (PUDs), which are special purpose districts which may be formed to generate and distribute electricity, and privately owned electrical companies (investor-owned utilities).  Investor-owned utility rates are subject to review and approval by the Utilities and Transportation Commission (UTC).
 
Each electric utility must develop a Resource Plan (RP).  Utilities with 25,000 or more customers not fully served by the Bonneville Power Administration (BPA) must develop Integrated Resource Plans (IRPs).  An IRP must include forecasts of projected customer demand and assessments of commercially available conservation and efficiency resources and renewable and nonrenewable technologies.  Utilities with fewer than 25,000 customers or that are fully served BPA customers must complete a RP with fewer required components than IRPs.  IRPs and other RPs must be updated at least every two years.
 
For electric utilities required to develop an IRP, the IRP must include the following:

• an assessment and 10-year forecast of the availability of regional generation and transmission capacity on which the utility may rely to provide and deliver electricity to its customers;
• a determination of resource adequacy metrics for the resource plan consistent with the forecasts;
• a forecast of distributed energy resources that may be installed by the utility's customers and an assessment of their effect on the utility's load and operations;
• an assessment, informed by the Department of Health's Cumulative Impact Analysis, of energy and nonenergy benefits and reductions of burdens to vulnerable communities and highly impacted communities; and
• a 10-year clean energy action plan for implementing the coal phase-out standard, the greenhouse gas (GHG) neutral standard, and the clean energy standard at the lowest reasonable cost, and at an acceptable resource adequacy standard, that identifies the specific actions to be taken by the utility consistent with the long-range IRP.

 
Electrification of Transportation Plan.  The governing body of a municipal electric utility or PUD may adopt an electrification of transportation plan that, at a minimum, establishes a finding that utility outreach and investment in the electrification of transportation infrastructure does not increase net costs to ratepayers in excess of 0.25 percent.
 
An investor-owned utility may submit to the UTC an electrification of transportation plan that deploys electric vehicle supply equipment (EVSE) or provides other electric transportation programs, services, or incentives to support electrification of transportation, provided that such EVSE programs or services do not increase costs to customers in excess of 0.25 percent above the benefits of electric transportation to all customers over a period consistent with the utility's planning horizon under its most recent IRP.
 
The incentive rate of return on investment:

• applies to any EVSE project installed after July 1, 2015; and
• may be allowed by the UTC through December 31, 2030, on capital expenditures for EVSE deployed for the benefit of ratepayers, provided the capital expenditures do not increase costs to ratepayers in excess of 0.25 percent.

Washington Greenhouse Gas Limits.  Washington enacted legislation in 2008 setting a series of limits on emission of GHGs within the state.  Ecology is responsible for monitoring and tracking the state's progress toward the emission limits.  Additional legislation in 2020 updated the state limits to the following:

•  by 2020, reduce overall emissions of GHGs to 1990 levels, or 90.5 million metric tons;
•  by 2030, reduce overall emissions of GHGs to 45 percent below 1990 levels, or 50 million metric tons;
•  by 2040, reduce overall emissions of GHGs to 70 percent below 1990 levels, or 27 million metric tons; and
•  by 2050, reduce overall emissions of GHGs to 95 percent below 1990 levels, or 5 million metric tons, and achieve net-zero GHG emissions.

Electric Vehicle Infrastructure Tool.   WSDOT must develop and maintain a publicly available mapping and forecasting tool (tool) that provides locations and essential information of charging and refueling infrastructure to support forecasted levels of EV adoption, travel, and use.  When developing the tool WSDOT must consult with Ecology as well as the Department of Commerce and the state Office of Equity.
 
The tool must:

• be designed to enable deployment of charging and refueling infrastructure to support transportation electrification efforts that result in emission reductions consistent with state GHG emission limits;
• initially prioritize on-road transportation;
• incorporate WSDOT traffic data for passenger and freight vehicles;
• integrate population, health, environmental, and socioeconomic data; and
• integrate related analyses, such as the state energy strategy.

 
If feasible or to the extent feasible, the tool must also:

• provide the data necessary to support state agencies with a role in transportation electrification efforts;
• provide data at a scale that supports electric utility planning for system-wide impacts and for impacts on specific components of the distribution system;
• forecast ZEV use that would achieve state emission reductions consistent with state emission limits;
• evolve over time to support future transportation electrification programs;
• address specified elements, including the amount, type, location, and year of installation of EV supply equipment, the EV characteristics necessary to model future EV penetration levels and use cases, the estimated energy and capacity demand, political boundaries, and existing infrastructure;
• integrate scenarios including varying levels of public transportation and active transportation use; and
• incorporate infrastructure located at or near the border with neighboring states and provinces.

 
WSDOT must conduct a stakeholder process when developing the tool and must involve stakeholders early in the tool development process.  WSDOT may contract with consultants or Department of Commerce to develop and implement all or part of the tool, and may rely on or contract for privately maintained data.
 
Funds in the EV Account may be used for the tool.  To the extent the tool is used to recommend future EV charging sites, WSDOT must consider recommending sites co-located with small retailers and other amenities.
 
Electric Utilities' Resource Plans.  Electric utilities' IRPs and RPs must account for:

• modeled load forecast scenarios considering the anticipated levels of ZEV use in a utility's service area, including anticipated levels of ZEV use in the utility's service area provided in the mapping and forecasting tool, if feasible;
• analysis, research, findings, recommendations, actions, and any other relevant information found in the utilities' transportation electrification plans; and
• assumed use case forecasts and the associated energy impacts, which may use the tool's forecasts, but this only applies to plans due to be filed after September 1, 2023.

 
Electric Vehicle Infrastructure Requirements.  The council's EV requirements for buildings must exceed the minimum requirements established in 2019 for residential and commercial buildings to the extent necessary to support anticipated levels of ZEV use that result from the implementation of the ZEV program, and that result in emission reductions consistent with state emission reduction limits.
 
The council must adopt rules to implement the EV infrastructure requirements by July 1, 2024 and the rules may be periodically updated thereafter.