Ecoflo Holding is implementing new invoice payment requirements effective May 1st, 2009. Invoices will only be paid if they match the terms of the purchase order, and must include the actual date of goods/services, purchase order number, and name of the Ecoflo employee who placed the order. Blanket purchase orders will no longer be accepted, and all orders must begin with 156XXX. Any changes to a purchase order must be communicated in writing and acknowledged by the Ecoflo buyer. Non-compliance will delay payment.