Oil and gas drillers will no longer be required to disclose chemicals used in hydraulic fracturing on public lands. The Trump administration plans to repeal the Obama-era rule and begin a new rule-making process later this year, according to News-Sentinel.com.

Originally issued in 2015, the rule has been on hold since last year when a judge in Wyoming ruled that federal regulators lack congressional authority to set rules for fracking. The rule drew criticism from the oil and gas industry for duplicating state efforts to regulate drilling. It relies on an online database, which was formed by industry and intergovernmental groups in 2011, used by at least 16 states to track the chemicals used during fracking.

Environmental groups worry that Trump’s decision to retract the legislation leaves public lands vulnerable to the oil and gas protection.

Learn more: News-Sentinel > Trump admin halts Obama-era rule on fracking on public land