Relating to axle weight limitations for certain vehicles transporting aggregates.

SB 70 allows vehicles transporting aggregates (like sand, gravel, or crushed stone) to exceed standard axle weight limits by up to 15% for the axle weight, provided the vehicle's total gross weight does not exceed the roadway's maximum authorized limit. This change directly affects commercial trucking companies and construction firms that haul aggregate materials across Texas highways. The bill amends the Transportation Code to create this specific tolerance for aggregate transport while maintaining overall weight restrictions. It would take effect immediately if approved by a two-thirds vote, or on September 1, 2025, otherwise.