California and 15 states that want the U.S. Postal Service to electrify its mail delivery vehicles are suing to halt purchases of thousands of gas-powered trucks as the agency modernizes its delivery fleet.

Three separate lawsuits, filed Thursday by the states and environmental groups in New York and California, ask judges to order a more thorough environmental review before the Postal Service moves forward with the next-generation delivery vehicle program.
When It Comes To Clean Energy, USPS Delivery Trucks Don't Yet Answer The Mail
Politics
When It Comes To Clean Energy, USPS Delivery Trucks Don't Yet Answer The Mail

Plaintiffs contend that purchases of fossil fuel-powered delivery vehicles will cause environmental harm for decades to come. The lawsuits could further delay the Postal Service's efforts to replace the ubiquitous delivery trucks that went into service between 1987 and 1994.