An Act providing for a permitting process for data center siting; and imposing powers and duties on the Department of Environmental Protection.

SB 991 creates a streamlined permitting process for data centers in Pennsylvania, requiring the Department of Environmental Protection (DEP) to identify at least 15 preapproved sites within 90 days - including at least five on decommissioned power generation facilities. Developers must submit location and energy source details to the DEP, pay a $10,000 fee, and receive a "notice to proceed" within three days to begin preliminary site work. The bill directly affects data center developers, the DEP (which gains new duties), and communities hosting decommissioned power sites. It aims to accelerate approvals by standardizing permits for data centers, power infrastructure, and transmission systems on designated sites.