New Pennsylvania Department of Environmental Protection (DEP) regulations on unconventional gas drillingtake effect Oct. 8. The new rules regulate unconventional drilling practices and hydraulic fracturing, as well as related activities. “These regulations are a long time in coming and have undergone one of the most transparent and participatory processes ever overseen by DEP,” said Acting DEP Secretary Patrick McDonnell. The new rules, which have been under development since 2011, are the first modernization of the Commonwealth’s oil and gas surface regulations since the implementation of new horizontal drilling and hydraulic fracturing techniques to capture natural gas from Pennsylvania’s shale deposits.