How do I pay with a purchase order?

1. Renew your membership (if you haven’t already) and select the ‘Invoice Me’ option at the end of the renewal process.
2. Fax (to 202-785-1845), email (to me********@*******ac.org), or mail your PO to us.
3. WaterISAC will reissue your invoice with your purchase order number printed on it.