Utilities, Utility Districts - As introduced, increases, from 15 to 20, the number of calendar days that may pass from the actual date specified in the first notice after a person responsible for excavation or demolition has given the notice of the intent to excavate or demolish before the person is required to serve additional notice if the excavation or demolition has not yet been completed; makes other changes to the Underground Utility Damage Prevention Act. - Amends TCA Title 65, Chapter 31, Part 1.

SB 2152 amends Tennessee's Underground Utility Damage Prevention Act to extend the deadline for excavation or demolition contractors to provide additional notice from 15 to 20 calendar days after the initial notice, if work isn't completed. It directly affects construction companies, contractors, and utility workers performing digging or demolition projects. Key provisions include updating definitions (like "digital locating" for electronic utility mapping), modifying requirements for "electric white lining" meetings, and adding vacuum excavation as a permitted method for locating utilities after notification. The bill focuses on clarifying procedures to reduce utility damage risks during construction.