Purchase Orders. Distributor shall order Equipment by written notice to Company. Each order shall specify the number of units to be shipped, the type of units to be shipped (as identified by Company model number designations indicated in the Price List) including all optional features, the desired method of shipment and the installation site. Company shall indicate its acceptance of such release by returning a signed copy to Distributor. Company agrees to ship units to Distributor as close as possible to the delivery schedule set forth in each order as accepted by Company, unless Company otherwise indicates in writing. Company shall not be required to honor any release which: (a) specifies a shipping date earlier than Company's thencurrent delivery schedule for the date such release is received by Company and/or (b) specifies a quantity to be delivered in any one month within the current delivery schedule which is greater than one hundred percent (100%) of the total quantity shipped in the preceding sixty (60) day period.