Specifications include, but are not limited to: 1. This invitation for bid is for six (6) on-track roadway machines, consisting of two (2) switch/production tampers, two (2) track stabilizers, and two (2) spot tampers. 2. To ensure that Metra can meet its maintenance and operational needs, all six pieces of equipment shall be from the same manufacturer. This enables Metra to use interchangeable parts to keep machines in operation and reduce service interruptions and reduces the resources required to train mechanics. 3. If awarded, Purchase Orders will be issued to the lowest responsive and responsible bidder based on the lump sum price of all six machines. Vendors must bid on all pieces of equipment to be considered responsive.4. Each machine shall meet the respective specifications provided with this invitation for bid. 5. As a condition of responsiveness, each bidder must submit a specification sheet describing the equipment along with the bid. All optional equipment to be provided to comply with Metra’s specifications must be clearly indicated.