METRO Magazine Logo
MenuMENU
SearchSEARCH

SunLine Outlines Plan to Go Full Zero Emissions by 2035

CARB requires all public transit agencies to submit a board approved Rollout Plan describing how they will gradually transition to a 100% zero-emission bus fleet.

by METRO Staff
July 14, 2020
SunLine Outlines Plan to Go Full Zero Emissions by 2035

The agency has successfully completed construction of a hydrogen electrolyzer, which has created infrastructure that promotes low- and zero-emission technology for the region and sets SunLine up to establish a fleet that is entirely zero-emission.

Credit:

SunLine

2 min to read


SunLine Transit Agency’s board approved its Zero-Emissions Bus Rollout Plan outlining how the agency will convert all vehicles to zero-emission technology by 2035, five years ahead of the deadline set by the California Air Resource Board’s (CARB) Innovative Clean Transit (ICT) Regulation.

CARB requires all public transit agencies to submit a board approved Rollout Plan describing how they will gradually transition to a 100% zero-emission bus fleet. SunLine’s submission marked the first from a small-sized transit agency. The deadline to submit a Rollout Plan for an agency of SunLine’s size is 2023.

Ad Loading...

The agency has successfully completed construction of a hydrogen electrolyzer, which has created infrastructure that promotes low- and zero-emission technology for the region and sets SunLine up to establish a fleet that is entirely zero-emission. SunLine’s completion of its hydrogen electrolyzer, which is the largest producing station in the country for transportation, is an important step not only for the Coachella Valley, but also for fuel cell vehicle adoption across the country.

According to the SunLine Rollout Plan, starting in 2021, all new fixed-route vehicle purchases will be zero-emission buses (ZEBs). Since each bus will operate for their entire useful life of 12-14 years, the last compressed natural gas (CNG) buses purchased will dictate the year in which the fleet is fully transitioned to zero-emission.

The paratransit cutaway buses will be replaced on schedule with the ICT regulation. However, the turnover of these vehicles is quicker because they are designed for a shorter lifespan. This will enable the paratransit CNG vehicles to be phased out of the fleet by 2030.

More Zero Emissions

Rows of MTA's Long Island Railroad (LIRR) commuter rail cars.

New York Awards $4.5M for Zero-Emission Microtransit and Bike Access Projects

NYSERDA funding will support electric microtransit and secure bike storage to improve first- and last-mile connections across downstate New York.

Read More →
Cover photo for METROspectives with The Bus Coalition
Busby Alex RomanMarch 13, 2026

Inside The Bus Coalition’s Push for Stronger Federal Transit Investment

In this conversation, TBC’s Executive Director Ed Redfern, President Corey Aldridge, and Washington Representative Joel Rubin outline the coalition’s key policy priorities, the challenges facing transit agencies, and how industry stakeholders can work together to strengthen the voice of bus transit at the federal level.

Read More →
A SunLine clean air bus at a stop.
Zero Emissionsby Alex RomanMarch 10, 2026

U.S. Zero-Emission Bus Adoption Surpasses 8,000 Vehicles

CALSTART’s latest Zeroing in on ZEBs report shows continued nationwide growth despite supply-chain challenges. The group’s Deputy Director of Transit, Mike Hynes, talked to METRO about how agencies are adapting procurement strategies, fleet plans, and more.

Read More →
Ad Loading...
An LA Metro clean air articulated bus
Zero EmissionsMarch 9, 2026

California’s Push Against Federal Headwinds to Reach 100% Zero-Emission Transit Goals

Even amid shifts in federal funding, California continues to advance its zero-emission agenda, enforcing and funding its regulatory framework despite federal obstacles.

Read More →
A Mountain Line bus
Zero Emissionsby Alex RomanMarch 4, 2026

BetterFleet’s Dan Hilson on the Mountain Line Contract and Intelligent Charge Management

Mountain Line selected BetterFleet’s charge-management and fleet-operations platform to support its nearly all-electric bus fleet and future electrification plans.

Read More →
A white Chesco Connect paratransit bus parked outside.
Zero Emissionsby Elora HaynesFebruary 9, 2026

Why Chester County Chose Propane To Power Its Demand-Response Transit Fleet

See how the county’s Chesco Connect system is replacing its buses with propane autogas to cut costs, reduce emissions, and support high-demand paratransit operations.

Read More →
Ad Loading...
King County Metro electric buses made by GILLIG.
Busby StaffJanuary 30, 2026

Seattle's King County Metro Introduces New Battery-Electric Buses

Rolling out in electric yellow and seafoam blue, the first battery-electric buses purchased from GILLIG will begin serving riders in south King County on February 2.

Read More →
A black, white, and light purple graphic with an image of a BAE Systems hybrid electric bus and text reading "Re-Examining Hybrid Buses in Transit."
Zero Emissionsby Elora HaynesJanuary 19, 2026

Why Some Transit Agencies Are Re-Examining Hybrid Buses

As zero-emission goals advance, hybrid buses remain part of fleet strategies, offering reliability and operational flexibility.

Read More →
Zero Emissionsby StaffJanuary 14, 2026

California's VVTA Unveils Hydrogen Fuel Cell Buses, Fueling Station, and Brand Refresh

The introduction of hydrogen fuel cell buses represents a significant step forward in reducing emissions while maintaining reliable, high-quality transit service.

Read More →
Ad Loading...
Technologyby Staff and News ReportsDecember 24, 2025

Biz Briefs: Electric Paratransit Buses in San Francisco and More

Biz Briefs covers the latest supplier news in the motorcoach and public transit industries.

Read More →