(

a) In addition to any other fees specified in this code, or the Revenue and Taxation Code, commencing July 1, 2020, a road improvement fee of one hundred dollars ($100) shall be paid to the department for registration or renewal of registration of every zero-emission motor vehicle model year and later subject to registration under this code, except those motor vehicles that are expressly exempted under this code from payment of registration fees. (

b) On January 1, 2021, and every January thereafter, the Department of Motor Vehicles shall adjust the road improvement fee imposed under subdivision (

a) by increasing the fee in an amount equal to the increase in the California Consumer Price Index for the prior year, except the first adjustment shall cover the prior six months, as calculated by the Department of Finance, with amounts equal to or greater than fifty cents ($0.50) rounded to the highest whole dollar. The incremental change shall be added to the associated fee rate for that year. (

c) Any changes to the road improvement fee imposed by subdivision (

a) that are enacted by legislation subsequent to July 1, 2017, shall be deemed to be changes to the base fee rate for purposes of the California Consumer Price Index calculation and adjustment performed pursuant to subdivision (b). (

d) Revenues from the road improvement fee, after deduction of the department’s administrative costs related to this section, shall be deposited in the Road Maintenance and Rehabilitation Account created pursuant to

Section of the Streets and Highways Code. (

e) This

section does not apply to a commercial motor vehicle subject to

Section 9400.1. (

f) This

section does not apply to a vehicle issued apportioned registration pursuant to the International Registration Plan. (

g) The road improvement fee required pursuant to this

section does not apply to the initial registration after the purchase of a new zero-emission motor vehicle. (

h) For purposes of this section, “zero-emission motor vehicle” means a motor vehicle as described in subdivision (

d) of

Section of the Health and Safety Code.