VIA uses two stylized Compressed Natural Gas-fueled (CNG) vehicles for its Prímo service. The 60-foot articulated bus, is a high-capacity vehicle with two passenger compartments linked by a pivoting joint that is enclosed by protective folding bellows. The 40-foot Prímo bus, is a shorter single compartment vehicle, which also runs on CNG power to save on fuel cost, while contributing a cleaner environment by reducing vehicle emissions. Prímo vehicles have a specialized paint scheme and interior design to give this premium service a distinctive look. Prímo vehicles meet all Federally Mandated Vehicle Safety Standards, Americans with Disabilities Act, and Society of Automotive Engineering Standards requirements.