Shipping is already taxed by weight throughout the US. It is enforced by a nationwide network of state run weight stations that are actively enforced by police.

Shipping is already taxed by weight throughout the US. It is enforced by a nationwide network of state run weight stations that are actively enforced by police. https://www.fhwa.dot.gov/policyinformation/hvut/mod1/whatishvut.cfm#:~:text=If%20the%20gross%20taxable%20weight,HVUT%20is%20%24550%20per%20year https://www.fhwa.dot.gov/policyinformation/hvut/mod1/whatish....