Establishes special parking for hybrid, electric, and alternative fuel vehicles.

S 4184 requires parking areas with 100+ public spaces in New Jersey to reserve 5% of spots for hybrid, electric, and alternative fuel vehicles. These spaces must be the most accessible (but not closer than handicapped spots), marked with green paint and signs reading "Hybrid and Alternatives Parking Only." Vehicle owners must obtain a Motor Vehicle Commission window sticker to use these spaces, with eligibility based on fuel efficiency standards (initially 45 MPG, then stricter CAFE standards after two years). Unauthorized parking incurs a $250 fine, and the law takes effect for 10 years with annual evaluation requirements.