Senate committee substitute to the 2nd edition makes the following changes.

Amends the act's long and short titles.

Amends GS 20-87(13) to increase the additional fee for initial registrations and renewals for plug-in electric vehicles that are not low-speed vehicles and do not rely on a nonelectric source of power from $130 to $230, effective January 1, 2020 (previously, raised the fee in three phases, to $175 in 2020, $225 in 2021, and $275 in 2022).

Modifies proposed GS 20-87(14) to establish an additional fee of $115 (was $87.50) for initial registrations and renewals of plug-in hybrid vehicles (previously, did not specify plug-in), effective January 1, 2020, and applicable to registrations and renewals due on or after that date. Defines plug-in hybrid vehicle to mean one that is capable of being propelled solely by electricity drawn from a battery that can be recharged from an external source of electricity, but is also capable of using motor fuel to propel the vehicle. Eliminates the proposed increase of the additional fee for initial registrations and renewals for hybrid vehicles in two phases, to $112.50 and $137.50, in 2021 and 2022.

Makes conforming changes to the proposed changes to GS 20-4.02, concerning adjusting additional registration fees for inflation. Amends the proposed date by which the DMV must begin annually adjusting the additional registration fees for electric vehicles and hybrid vehicles set out in GS 20-87 pursuant to the provided formula, to now begin January 1, 2021 (rather than January 1, 2023).