Employer-Based Trip Reduction Rule Adopted By California Air District

Air pollution rules recently passed in California seek to change the way workers get to their jobs. While solo commuters won't be forced out of their cars, businesses must choose from a selection of strategies aimed to do just that.

2 minute read

December 30, 2009, 5:00 AM PST

By Irvin Dawid


Long known for being one of the most pioneering regulatory agencies in the country due to their federal mandate to reduce air pollution in the 8-county Central Valley, the San Joaquin Valley Air Pollution Control District now is focused on reducing tailpipe emissions from commuters working at the area's largest businesses. Unfortunately, those commuting outside the region, be it to the Bay Area, South Coast, or Inland Empire, need not consider alternatives despite driving greater distances.

"The Valley Air Pollution Control District has long pushed voluntary measures. Now they've added teeth by forcing businesses to choose from a number of strategies aimed at changing the behavior of auto-addicted employees.

Employers could be fined... if they don't at least try, or if they fail to report their results to the district.

(Rule 9410) affects only businesses with 100 or more employees and is expected to cost each business $3,000 to $9,700 per year. Saved will be 400 tons per year of tailpipe emissions, the district says."

From Planetizen, Dec. 2005: "First 'Smog Fee' On New Development": "Convinced that sprawl begets smog, Central Valley air quality officials are expected today to become the first regulators in the nation to force builders to pay air pollution fees for new development."

From Valley Air Dist. Press Release, 10-08-09 (pdf) : "(Yesterday) the Fifth District Court of Appeals in Fresno affirmed a landmark 2008 decision by the Fresno County Superior Court which ruled in favor of the District in a challenge by developers to the District's Rule 9510. Also called Indirect Source Review, the rule was adopted in December 2005 and establishes development fees for air-pollution mitigation.

From Planetizen: Wood Burning Ban Saves Lives:

"Five years ago, the Central Valley became the first area of California to ban indoor wood burning when an 'alert' was called by the air district; other air districts followed in 2008. This study, released in Nov. shows that "no burn" days save lives."

Thanks to Laura Fultz Stout

Sunday, December 20, 2009 in The Stockton Record

"Planetizen federal action tracker" logo superimposed over black and white image of US Capitol dome.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

October 28, 2026 - Zachary Whalen

A car drives through a puddle, making a large splash. Rain pours down.

California plans to bury El Niño’s downpour

If the state plays its cards right, it may be able to store a billion acre-feet of El Niño’s water in aquifers.

October 28, 2026 - Grist

Lake Powell with much of the water evaporated.

Desperate measures: Advocates weigh draining Lake Powell to fill Colorado River

Draining the reservoir could reduce evaporation losses by a couple hundred thousand acre-feet.

October 30, 2026 - Yale Environment 360

Nithya Ramen talks to an older man. She is smiling and wearing a yellow dress. They are both outside.

Los Angeles just elected an urban planner as its mayor

Transportation analysts are optimistic that Raman will be more aggressive in addressing transit issues than Bass.

7 hours ago - Los Angeles Times

Mamdani behind a microphone, in front of a snowbank

Mamdani’s pied-à-terre tax survives legal challenge

A panel of judges found that the plaintiffs failed to demonstrate injury as a result of New York City's implementation of the tax.

November 6 - CNN

A road in north eastern Nebraska with power lines on either side, and grassy fields.

Eastern Nebraska is running out of electricity

Data centers and electrification are straining eastern Nebraska’s grid, throttling economic development.

November 6 - Grist

FREE Course: Walkable City 1: Why Walkability?

After describing his path towards focusing on walkability as the essence of good planning, Jeff Speck marches through his five principal reasons for making more walkable places.

Reinventing Malls: Planning Alchemy—Turning Gray Fields Into Gold

The course focuses on the opportunities and imperatives that shape reinvention of mall sites.