HB 3791 modifies the time frame required for excavation notification under the Utilities Code. It extends the notification period for individuals intending to excavate, requiring them to notify the appropriate notification center no earlier than 14 business days and no later than three business days before beginning excavation. The bill also updates the timeline for underground facility operators to mark their facilities, requiring them to do so by 11:59 p.m. on the second business day after receiving notice. Additionally, it repeals existing provisions regarding specific notification timeframes and communication methods, replacing them with standardized electronic notification options.