Fully autonomous vehicles; commercial use, civil penalty.

Formatting and line number changes were made to convert the bill from a Finance and Appropriations Substitute to a Floor Amendment in the Nature of a Substitute, including updated bill numbers (26107521D vs 26106777D) and amendment dates (February 9 vs February 4, 2026).

The definition of 'Human driver' was slightly modified to clarify that the driver must have a valid driver's license for the class of vehicle being operated, adding specificity to the existing requirement.

Chapter title changed from 'Automated Driving Systems' to 'Commercial Use of Fully Autonomous Vehicles', indicating a shift in legislative focus toward commercial applications.

Four new sections (46.2-1428 through 46.2-1430) were added to address commercial-specific requirements for fully autonomous vehicles that were not included in the original version.

The bill text was reformatted with line numbers and spacing changes, though the substantive definitions remained largely the same in the visible portion of the document.