Specifications include, but are not limited to: The City of Chula Vista is looking to purchase the equipment identified in this RFB on an as needed basis. The award is intended to be for one initial year and potentially include 4 single year extensions at the City's sole discretion. If the City chooses to execute an option year, it will be based on available funding. Any price increases will be negotiated during the option to extend and be equal to the San Diego CPI and shall not exceed 5%. NO SUBSTITUTIONS WILL BE ACCEPTED.