Under a rule change that takes effect Jan. 1, National Highway Traffic Safety Administration odometer disclosure requirements expand from 10 years to 20 years. Now, model year 2011 vehicles will not become exempt from the requirements until Jan. 1, 2031.

The new 20-year odometer capture exemption requirements apply only to vehicles that are 2011 model year or newer. Vehicles manufactured with a 2010 model year or older remain exempt under the 10-year exemption. 

This type of "rolling" exemption is best described as adding an additional model year worth of vehicles each January until the 20-year exemption is fully implemented. 

The final rule amending the NHTSA’s odometer disclosure requirements came in 2019.