PORTLAND, Maine (AP) Maine’s two U.S. senators are joining more than a third of their colleagues in the Senate to call for the government to implement provisions of the most recent farm bill that are designed to help struggling dairy farmers.

The 2018 farm bill makes changes to the way the federal government provides financial assistance to dairy producers when prices are low. Republican Sen. Susan Collins and independent Sen. Angus King say dairy farmers are facing market instability and need the added flexibility of the changes.

Collins, King and 36 other senators called for the implementation of the changes in a letter last week to U.S. Department of Agriculture Secretary Sonny Perdue. The letter says dairy producers in the country are “struggling to survive the fourth year of sustained low prices.”