Federal regulators are planning changes to vehicle fuel-economy ratings after the Ford Motor Co. said Thursday that it was cutting the miles-per-gallon rating on one of its popular hybrid models.
The Environmental Protection Agency said it would update its labeling rules — which date to the 1970s — to resolve disparities among the growing number of hybrid and electric vehicles on the market.
The move comes as more consumers and analysts are challenging the accuracy of government fuel-economy stickers on new models. At the same time, automakers are pushing to improve fuel economy as strict new government mileage standards are phased in. Full story for BostonGlobe.com subscribers.