Committee sends emissions-transparency bill to appropriations after debate over duplication and cost

Representatives Marshall and Garcia sponsored House Bill 12-41, a transparency measure that would require owners or operators of stationary sources to post emissions records they already submit to the state on a publicly accessible website.

Marshall said the bill modernizes public access to emissions information and responds to a partial disapproval by the U.S. Environmental Protection Agency of Colorado’s State Implementation Plan on the grounds that some records were available only "on request" rather than accessible to the public. "We’re just trying to bring it into the 21st century," Representative Marshall said.

Supporters — including the Colorado Municipal League and the Sierra Club — told the committee that posting emissions records improves public access and local accountability. Ramesh Bhat, chair of the Sierra Club’s conservation committee in Colorado, said citizens have a right to know pollution levels affecting their communities.

The Colorado Department of Public Health and Environment (CDPHE) opposed the bill in its current form. Stephanie Schaup, program manager in the Air Pollution Control Division, said the state already requires reporting, provides interactive databases and an online map, and is working on data modernization. CDPHE warned that the bill would vastly expand the volume of materials sources must make accessible at all times and that verifying tens of thousands of web links would require significant resources — the basis for the fiscal note. "This bill would be a major undertaking for the State," Schaup told the committee.

Industry witnesses including the American Petroleum Institute, Colorado Petroleum Association and Colorado Oil & Gas Association also urged a no vote. They said data is already public via CDPHE and federal filings, raised cybersecurity concerns with hosting operational documents on third-party sites, and warned that posting raw emissions data without context could mislead viewers.

Committee members adopted two technical amendments (L001 and L002) intended to limit new regulatory obligations and to put the publishing requirement within an existing air-quality enterprise structure. A third proposed amendment (L003) that would have funded implementation was withdrawn by the sponsor during the hearing.

The committee ultimately voted to send the bill to the Committee on Appropriations as amended. The transcript records the committee vote as 9 yes, 4 no. Sponsors said they intend to continue stakeholder work to refine implementation details and the fiscal impacts.

Key clarifications: CDPHE staff said the department already holds emissions records and provides public access tools, including an interactive map and an oil-and-gas annual emissions reporting database. The department also said many smaller sources are inspected and records requested on multi-year inspection cycles; requiring continuous online posting would change the frequency with which records are available for review and could impose additional review obligations on the agency.

Next steps: HB 12-41, as amended, moves to the Appropriations Committee for further review of fiscal effects and implementation details.