By STEPHEN POWER and IAN TALLEY 

Online.wsj.com: A growing number of state regulators are urging the Obama administration to slow the rollout of proposed federal rules curbing industrial greenhouse-gas emissions, saying the administration's approach could overwhelm them with paperwork, delay construction projects and undercut their own efforts to fight climate change.

The concerns echo some criticisms that business groups -- including the American Petroleum Institute and the National Association of Manufacturers -- have voiced about the potential consequence of new regulations, though the states generally don't challenge the legality of the proposed regulations, as some business groups have. Indeed, many state regulators continue to say they support the Environmental Protection Agency's effort to regulate greenhouse gases. Their concerns, they say, have more to do with how quickly such rules should be phased in, and how to pay for an expansion in regulatory oversight at a time when their budgets are in the red.