Energy companies working in northern Colorado will have to inspect their smallest facilities more often under regulations approved today by state authorities.

The Air Quality Control Commission, part of the Colorado Department of Public Health & Environment, has been considering tighter requirements to reduce air pollution from oil and gas operations along the northern Front Range. The regulations are part of a long-running effort to reduce ozone levels in the Denver area and north into Weld County.

In 2014, the state created the nation’s first regulations requiring energy companies to routinely check their field operations for leaks, and fix any that are found.

Today, the commissioners voted unanimously to increase how often those routine checks are done on the smallest wells in the area north of Denver, also known as the “non-attainment” area where ozone levels sometimes exceed federal standards.

Read more at the Denver Business Journal: