The House of Representatives has delayed rules to implement a new rule that would require states to test fertilizer for nitrogen contamination, despite public health concerns.
The measure would have required states to use the same testing criteria as they use for other pollutants, including sulfur dioxide, carbon monoxide and ozone.
The legislation had passed the Senate on Wednesday, and the House of Representative voted to move it to the full House.
The Senate will hold a vote on the bill this week.
Senate Democrats and environmental groups, including the American Lung Association, were concerned that the rule could lead to widespread use of nitrogen fertilizer, which has a high potential for causing health problems.
Sen. Bernie Sanders, I-Vt., who led the push to roll back the Obama administration’s nitrogen rule, was among those who voted against the measure.
The move comes as lawmakers are also weighing whether to allow a new version of a controversial rule that allows states to expand fertilizer programs.
The Senate voted last week to allow that rule to go into effect, but the House is expected to take up the measure this week as well.