Static Vertical (1a, 1a+): Vertical personnel platforms (static)
Static Boom (1b, 1b+): Self-propelled booms (outriggers), trailers/push-arounds, vehicle-mounted platforms
Mobile Vertical (3a, 3a+): Scissor lifts, vertical personnel platforms (mobile)
Mobile Boom (3b, 3b+): Self-propelled booms
Push Around Vertical (PAV): Push around verticals